Formatting numeric values in JavaScript
Learn common number formatting operations, such as rounding, padding, optional decimal marks, currency, seconds, bytes, and more.
JavaScript Number Formatting & Conversion
The JavaScript article collection contains a wide variety of ES6 helper functions. It includes helpers for dealing with primitives, arrays and objects, as well as algorithms, DOM manipulation functions and Node.js utilities.
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JavaScript · How can I convert between hexadecimal, RGB, HSL and HSB color formats in JavaScript?
Learn how to easily convert between the various color formats, using JavaScript and a few simple formulas.
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JavaScript · Digitize a number in JavaScript
Learn how to convert any number to an array of digits, as well as how to sum the digits and compute the digital root efficiently.
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JavaScript · Convert an integer to a roman numeral in JavaScript
Roman numerals are often used for stylistic reasons, but converting an integer to a roman numeral can be a bit tricky.
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JavaScript · Formatting relative time in JavaScript
Did you know JavaScript has a built-in way to format relative time? It's called
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JavaScript · How can I remove trailing zeros from a number in JavaScript?
When formatting decimal values in JavaScript, trailing zeros can be undesired. Here's how to deal with them.
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JavaScript · Pretty print number of bytes
Convert a number in bytes to a human-readable string.
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JavaScript · Convert between binary and decimal numbers in JavaScript
Binary numbers are a fundamental part of computer science. Learn how to convert between binary and decimal numbers in JavaScript.
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JavaScript · Convert decimal number to hexadecimal
Ever needed to convert a decimal number to hexadecimal? Here's a quick and easy way to do it.
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JavaScript · JavaScript's numeric separators explained
Numeric separators are a somewhat lesser-known JavaScript syntactic sugar that can make working with large constants a lot easier.