sprintf-js vs d3-format vs mathjs vs numeral vs format-number vs accounting-js
JavaScript Number Formatting Libraries Comparison
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sprintf-jsd3-formatmathjsnumeralformat-numberaccounting-jsSimilar Packages:
What's JavaScript Number Formatting Libraries?

These libraries provide various functionalities for formatting numbers, currencies, and mathematical expressions in JavaScript applications. They cater to different needs such as financial calculations, data visualization, and general number formatting, making it easier for developers to present numerical data in a user-friendly manner. Each library has its unique features, design principles, and use cases, allowing developers to choose the most suitable one based on their specific requirements.

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sprintf-js64,686,9872,12139.9 kB68a year agoBSD-3-Clause
d3-format8,923,92463357.8 kB183 years agoISC
mathjs1,652,56514,6409.49 MB1385 days agoApache-2.0
numeral1,274,8429,693-3518 years agoMIT
format-number36,08951-68 years agoBSD-3-Clause
accounting-js29,431114-129 years agoMIT
Feature Comparison: sprintf-js vs d3-format vs mathjs vs numeral vs format-number vs accounting-js

Number Formatting

  • sprintf-js:

    Sprintf-js allows for formatted string output using a syntax similar to C's printf function. It is particularly useful for creating complex formatted strings that include numbers, providing flexibility in how numerical data is presented within strings.

  • d3-format:

    D3-format offers extensive formatting options tailored for data visualization, including support for scientific notation, percentages, and custom formats. It allows for precise control over how numbers are displayed in charts and graphs, catering specifically to the needs of data-driven applications.

  • mathjs:

    Mathjs includes number formatting as part of its broader mathematical capabilities. It allows for formatting numbers in various ways, including currency and percentage formats, while also supporting complex calculations and operations, making it a versatile choice for mathematical applications.

  • numeral:

    Numeral provides a rich set of formatting options for numbers, including currency, percentages, and custom formats. It is designed to handle internationalization, making it suitable for applications that need to present numbers in different locales consistently.

  • format-number:

    Format-number focuses on basic number formatting, providing options for decimal places and thousands separators. It is lightweight and easy to implement, making it suitable for simple projects that require basic formatting without additional complexity.

  • accounting-js:

    Accounting-js provides simple methods for formatting numbers and currencies, allowing developers to easily format values for display in financial applications. It supports customizable decimal and thousand separators, making it straightforward to present numerical data clearly.

Mathematical Operations

  • sprintf-js:

    Sprintf-js does not perform mathematical operations; it is focused on string formatting. It is useful for outputting formatted strings that may include results from calculations done elsewhere.

  • d3-format:

    D3-format does not include mathematical operations; it is strictly for formatting numbers in the context of data visualization. It is meant to complement libraries that handle calculations.

  • mathjs:

    Mathjs excels in mathematical operations, offering a wide range of functions for calculations, including algebra, calculus, and statistics. It is ideal for applications that require extensive mathematical capabilities alongside number formatting.

  • numeral:

    Numeral does not perform mathematical operations but focuses on formatting numbers. It is best used in scenarios where calculations are handled by other libraries.

  • format-number:

    Format-number is limited to formatting and does not support mathematical operations. It is designed for straightforward use cases where calculations are handled separately.

  • accounting-js:

    Accounting-js is primarily focused on formatting and does not provide advanced mathematical operations. It is best used in conjunction with other libraries for calculations.

Complexity and Learning Curve

  • sprintf-js:

    Sprintf-js has a familiar syntax for those with a background in C or similar languages, making it easy to learn for those users. However, it may require some adjustment for those unfamiliar with formatted string output.

  • d3-format:

    D3-format may have a steeper learning curve for those unfamiliar with D3.js, as it is designed to work within that ecosystem. Understanding D3.js concepts is essential for effective use.

  • mathjs:

    Mathjs has a moderate learning curve due to its extensive features and capabilities. Users may need time to familiarize themselves with its API and mathematical functions, but it is well-documented.

  • numeral:

    Numeral is easy to learn and implement, with a clear API for formatting numbers. It is suitable for developers looking for a quick solution without extensive setup.

  • format-number:

    Format-number is straightforward and easy to learn, making it suitable for beginners who need basic formatting capabilities without complexity.

  • accounting-js:

    Accounting-js has a low learning curve due to its simple API focused on formatting. It is easy to integrate and use for basic financial applications.

Localization Support

  • sprintf-js:

    Sprintf-js does not focus on localization; it is primarily concerned with string formatting. Developers may need to handle localization separately.

  • d3-format:

    D3-format supports locale-specific formatting, making it suitable for applications that need to present numbers according to regional conventions in data visualizations.

  • mathjs:

    Mathjs includes localization support for number formatting, allowing users to format numbers according to regional conventions, making it versatile for international applications.

  • numeral:

    Numeral excels in localization, providing extensive options for formatting numbers based on different locales, making it ideal for applications targeting international audiences.

  • format-number:

    Format-number offers limited localization features, primarily focusing on basic formatting without extensive support for different locales.

  • accounting-js:

    Accounting-js provides basic localization support for currency formatting, allowing developers to customize formats based on locale. However, it may not cover all localization needs comprehensively.

Extensibility

  • sprintf-js:

    Sprintf-js is not designed for extensibility; it focuses on string formatting and does not provide options for extending its functionality.

  • d3-format:

    D3-format is highly extensible and can be integrated into D3.js visualizations, allowing developers to create custom formats and extend its functionality as needed.

  • mathjs:

    Mathjs is highly extensible, allowing users to create custom functions and extend its capabilities. This makes it suitable for complex applications that require tailored mathematical solutions.

  • numeral:

    Numeral is somewhat extensible, allowing for custom formats, but it is primarily focused on the provided formatting options without extensive customization capabilities.

  • format-number:

    Format-number is not designed for extensibility; it provides basic formatting features without options for customization or extension.

  • accounting-js:

    Accounting-js is lightweight and does not offer extensive extensibility options. It is designed for specific use cases related to financial data formatting.

How to Choose: sprintf-js vs d3-format vs mathjs vs numeral vs format-number vs accounting-js
  • sprintf-js:

    Select sprintf-js if you are looking for a library that mimics the functionality of C-style string formatting. It is useful for creating formatted strings with numbers, allowing for precise control over the output format, making it ideal for applications that require detailed string manipulation.

  • d3-format:

    Select d3-format if you are working with data visualization in D3.js and require precise control over number formatting. It is designed to work seamlessly with D3.js, offering a powerful and flexible way to format numbers, including support for locale-specific formatting and custom formats for charts and graphs.

  • mathjs:

    Use mathjs if you require a comprehensive library for mathematical operations, including advanced calculations, units, and complex numbers. It offers extensive functionality beyond just formatting, making it ideal for applications that involve heavy mathematical computations and require a robust solution.

  • numeral:

    Choose numeral if you need a versatile library that provides a wide range of formatting options for numbers, currencies, and percentages. It is particularly useful for applications that require consistent number formatting across different locales and contexts, making it a good choice for international applications.

  • format-number:

    Opt for format-number if you need a straightforward library for formatting numbers with options for decimal places and thousands separators. It is lightweight and easy to use, making it suitable for simple applications where advanced features are not necessary.

  • accounting-js:

    Choose accounting-js if you need a simple and lightweight solution for formatting and manipulating currency values, especially for financial applications. It provides straightforward methods for currency formatting, number formatting, and basic arithmetic operations without the overhead of complex features.

Similar Npm Packages to sprintf-js

sprintf-js is a JavaScript library that provides a simple and powerful way to format strings. It is particularly useful for creating formatted output by allowing developers to embed variables within strings using a format specifier syntax similar to that found in languages like C. This makes it easy to create dynamic strings for logging, displaying messages, or generating formatted output in applications.

While sprintf-js is a popular choice for string formatting, there are several alternatives available in the JavaScript ecosystem. Here are a few notable ones:

  • sprintf is a similar library that offers string formatting capabilities. It provides a straightforward way to format strings using placeholders and supports various data types. While it shares many similarities with sprintf-js, it may have different performance characteristics or additional features that could be beneficial depending on your specific use case.

  • string-format is another alternative that allows for string interpolation and formatting. It uses a slightly different syntax, enabling developers to format strings using named placeholders. This can make the code more readable and maintainable, especially when dealing with multiple variables. If you prefer a more descriptive way to format strings, string-format might be the right choice for your project.

To see how sprintf-js compares with sprintf and string-format, check out the comparison: Comparing sprintf vs sprintf-js vs string-format.

Similar Npm Packages to d3-format

d3-format is a powerful formatting library that is part of the D3.js ecosystem, primarily used for formatting numbers, currencies, and percentages in data visualizations. It provides a flexible and efficient way to format numerical data according to various specifications, making it a popular choice among developers working with data-driven applications. While d3-format is widely used, there are several alternatives that offer similar functionalities. Here are a few notable ones:

  • accounting-js is a lightweight JavaScript library for number and currency formatting. It provides a simple API to format numbers, currency, and percentages, making it easy to display financial data in a user-friendly manner. If you need a straightforward solution for formatting monetary values and want to avoid the overhead of a larger library, accounting-js is an excellent choice.

  • format-number is a minimalistic library focused on formatting numbers in a variety of ways. It allows developers to specify options for decimal places, currency symbols, and more. If you are looking for a simple and effective way to format numbers without additional features, format-number can be a suitable alternative.

  • mathjs is a comprehensive library for mathematics in JavaScript, which includes number formatting capabilities. While its primary focus is on mathematical operations, it also provides functionalities for formatting numbers, making it a versatile choice for applications that require both calculations and formatting. If you need a library that can handle complex mathematical operations alongside number formatting, mathjs is a great option.

  • numeral is another popular library for formatting and manipulating numbers. It offers a rich set of formatting options, including currency, percentages, and custom formats. Numeral is particularly useful for applications that require extensive number formatting capabilities without the need for a full-fledged data visualization library.

  • sprintf-js is a library that provides sprintf-style formatting for strings, including numbers. It allows for formatted output similar to the C programming language's sprintf function. If you are familiar with sprintf syntax and prefer to format numbers within strings, sprintf-js can be a convenient choice.

For a comprehensive comparison of these libraries, check out the following link: Comparing accounting-js vs d3-format vs format-number vs mathjs vs numeral vs sprintf-js.

Similar Npm Packages to mathjs

mathjs is a comprehensive mathematics library for JavaScript and Node.js. It provides a wide range of mathematical functions, constants, and tools for working with numbers, matrices, units, and more. With its flexible API, mathjs is suitable for both simple calculations and complex mathematical operations, making it a popular choice among developers who need robust mathematical capabilities in their applications.

While mathjs is a powerful tool, there are alternatives that cater to specific mathematical needs:

  • decimal.js is a library that provides arbitrary-precision decimal arithmetic. It is particularly useful for applications that require high precision in calculations, such as financial applications where rounding errors can lead to significant issues. Decimal.js allows developers to perform calculations without losing precision, making it a great choice for scenarios where accuracy is paramount.
  • numeric is a library focused on numerical analysis and linear algebra. It provides tools for numerical computations, including matrix operations, solving equations, and performing optimizations. If your work involves heavy numerical computations or linear algebra, numeric can be a valuable alternative to mathjs, offering specialized functions for these tasks.

To see how mathjs compares with decimal.js and numeric, check out the comparison: Comparing decimal.js vs mathjs vs numeric.

Similar Npm Packages to numeral

numeral is a JavaScript library designed for formatting and manipulating numbers. It provides a simple and intuitive API for formatting numbers into various styles, such as currency, percentages, and more. This makes it a popular choice for developers who need to present numerical data in a user-friendly manner. While numeral is a robust solution for number formatting, there are several alternatives available that also cater to similar needs. Here are a few noteworthy options:

  • accounting is a lightweight JavaScript library for number formatting and manipulation, particularly focused on financial data. It provides functions for formatting currency, percentages, and numbers with thousands separators. If your application primarily deals with financial data and you need a straightforward way to format and manipulate numbers, accounting is a solid choice. Its simplicity and focus on financial use cases make it an appealing alternative to numeral.

  • d3-format is part of the D3.js library, which is widely used for data visualization. The d3-format module provides powerful formatting capabilities for numbers, including support for custom formats. If you're already using D3 for visualizations or need advanced formatting options, d3-format can be a great choice. It allows for extensive customization and is particularly useful when working with complex datasets that require specific formatting rules.

  • numbro is another library for formatting numbers, inspired by numeral.js. It offers a similar API and supports various formats, including currency, percentages, and more. numbro is designed to be lightweight and easy to use, making it a good alternative for developers looking for a straightforward number formatting solution. Its compatibility with numeral.js means that transitioning between the two libraries can be relatively seamless.

For a detailed comparison of these libraries, check out the following link: Comparing accounting vs d3-format vs numbro vs numeral.

Similar Npm Packages to format-number

format-number is a lightweight JavaScript library designed to format numbers in a variety of ways. It provides an easy-to-use API for formatting numbers as currency, percentages, or general numeric values, making it a valuable tool for developers who need to present numerical data in a user-friendly manner. While format-number is a solid choice for number formatting, there are several alternatives in the JavaScript ecosystem that offer similar functionalities. Here are a few noteworthy options:

  • accounting is a comprehensive library for number formatting and currency manipulation. It provides a wide range of features, including formatting numbers, currencies, and percentages, as well as performing basic arithmetic operations. accounting is particularly useful for applications that require extensive financial calculations and formatting, making it a popular choice among developers working with financial data.

  • currency.js is a library specifically designed for handling currency values in JavaScript. It provides a simple API for creating, manipulating, and formatting currency values, ensuring that developers can easily work with monetary amounts without worrying about precision issues. currency.js is an excellent choice for applications that require accurate currency calculations and formatting, such as e-commerce platforms or financial applications.

  • numeral is a library that focuses on formatting and manipulating numbers in a variety of ways. It supports a wide range of formatting options, including currency, percentages, and custom formats. numeral is particularly useful for applications that need to display numbers in a specific format, making it a versatile choice for developers looking to enhance the presentation of numerical data.

To see how format-number compares with accounting, currency.js, and numeral, check out the comparison: Comparing accounting vs currency.js vs format-number vs numeral.

Similar Npm Packages to accounting-js

accounting-js is a JavaScript library designed for number formatting and currency manipulation. It provides a simple and intuitive API for formatting numbers, currencies, and percentages, making it an excellent choice for applications that require financial data presentation. With features like customizable formats, accounting-style number formatting, and support for multiple currencies, accounting-js is widely used in web applications that need to display financial information clearly and accurately.

An alternative to accounting-js is numeral. This library also focuses on number formatting and provides a rich set of features for formatting numbers, currencies, and percentages. numeral allows for easy customization of number formats and offers a straightforward API for converting numbers to human-readable formats. It is particularly useful for applications that require dynamic number formatting, such as dashboards and reporting tools.

Both libraries serve similar purposes, but they have different approaches and features. While accounting-js is more focused on financial data and currency manipulation, numeral offers a broader range of number formatting capabilities.

For a detailed comparison between accounting-js and numeral, check out this link: Comparing accounting-js vs numeral.

README for sprintf-js

sprintf-js

Build Status NPM Version Dependency Status devDependency Status

sprintf-js is a complete open source JavaScript sprintf implementation for the browser and Node.js.

Note: as of v1.1.1 you might need some polyfills for older environments. See Support section below.

Usage

var sprintf = require('sprintf-js').sprintf,
    vsprintf = require('sprintf-js').vsprintf

sprintf('%2$s %3$s a %1$s', 'cracker', 'Polly', 'wants')
vsprintf('The first 4 letters of the english alphabet are: %s, %s, %s and %s', ['a', 'b', 'c', 'd'])

Installation

NPM

npm install sprintf-js

Bower

bower install sprintf

API

sprintf

Returns a formatted string:

string sprintf(string format, mixed arg1?, mixed arg2?, ...)

vsprintf

Same as sprintf except it takes an array of arguments, rather than a variable number of arguments:

string vsprintf(string format, array arguments?)

Format specification

The placeholders in the format string are marked by % and are followed by one or more of these elements, in this order:

  • An optional number followed by a $ sign that selects which argument index to use for the value. If not specified, arguments will be placed in the same order as the placeholders in the input string.
  • An optional + sign that forces to precede the result with a plus or minus sign on numeric values. By default, only the - sign is used on negative numbers.
  • An optional padding specifier that says what character to use for padding (if specified). Possible values are 0 or any other character preceded by a ' (single quote). The default is to pad with spaces.
  • An optional - sign, that causes sprintf to left-align the result of this placeholder. The default is to right-align the result.
  • An optional number, that says how many characters the result should have. If the value to be returned is shorter than this number, the result will be padded. When used with the j (JSON) type specifier, the padding length specifies the tab size used for indentation.
  • An optional precision modifier, consisting of a . (dot) followed by a number, that says how many digits should be displayed for floating point numbers. When used with the g type specifier, it specifies the number of significant digits. When used on a string, it causes the result to be truncated.
  • A type specifier that can be any of:
    • % — yields a literal % character
    • b — yields an integer as a binary number
    • c — yields an integer as the character with that ASCII value
    • d or i — yields an integer as a signed decimal number
    • e — yields a float using scientific notation
    • u — yields an integer as an unsigned decimal number
    • f — yields a float as is; see notes on precision above
    • g — yields a float as is; see notes on precision above
    • o — yields an integer as an octal number
    • s — yields a string as is
    • t — yields true or false
    • T — yields the type of the argument1
    • v — yields the primitive value of the specified argument
    • x — yields an integer as a hexadecimal number (lower-case)
    • X — yields an integer as a hexadecimal number (upper-case)
    • j — yields a JavaScript object or array as a JSON encoded string

Features

Argument swapping

You can also swap the arguments. That is, the order of the placeholders doesn't have to match the order of the arguments. You can do that by simply indicating in the format string which arguments the placeholders refer to:

sprintf('%2$s %3$s a %1$s', 'cracker', 'Polly', 'wants')

And, of course, you can repeat the placeholders without having to increase the number of arguments.

Named arguments

Format strings may contain replacement fields rather than positional placeholders. Instead of referring to a certain argument, you can now refer to a certain key within an object. Replacement fields are surrounded by rounded parentheses - ( and ) - and begin with a keyword that refers to a key:

var user = {
    name: 'Dolly',
}
sprintf('Hello %(name)s', user) // Hello Dolly

Keywords in replacement fields can be optionally followed by any number of keywords or indexes:

var users = [
    {name: 'Dolly'},
    {name: 'Molly'},
    {name: 'Polly'},
]
sprintf('Hello %(users[0].name)s, %(users[1].name)s and %(users[2].name)s', {users: users}) // Hello Dolly, Molly and Polly

Note: mixing positional and named placeholders is not (yet) supported

Computed values

You can pass in a function as a dynamic value and it will be invoked (with no arguments) in order to compute the value on the fly.

sprintf('Current date and time: %s', function() { return new Date().toString() })

AngularJS

You can use sprintf and vsprintf (also aliased as fmt and vfmt respectively) in your AngularJS projects. See demo/.

Support

Node.js

sprintf-js runs in all active Node versions (4.x+).

Browser

sprintf-js should work in all modern browsers. As of v1.1.1, you might need polyfills for the following:

  • String.prototype.repeat() (any IE)
  • Array.isArray() (IE < 9)
  • Object.create() (IE < 9)

YMMV

License

sprintf-js is licensed under the terms of the BSD 3-Clause License.

Notes

1 sprintf doesn't use the typeof operator. As such, the value null is a null, an array is an array (not an object), a date value is a date etc.

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