Formatting relative time in JavaScript
Did you know JavaScript has a built-in way to format relative time? It's called Intl.RelativeTimeFormat and it's awesome!
JavaScript String Articles
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 · Join the segments of a URL using JavaScript
Learn how to join the segments of a URL and normalize the resulting URL using JavaScript.
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JavaScript · How can I extend a 3-digit color code to a 6-digit color code in JavaScript?
Learn how to convert a 3-digit RGB notated hexadecimal color-code to the 6-digit form.
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JavaScript · Count the occurrences of a value in a JavaScript array or string
Given a value, find out how many times it appears in an array or string.
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JavaScript · Common regular expressions
A collection of regular expressions that can be used to solve common problems.
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JavaScript · Word wrap a JavaScrip string
Wrap a string to a given number of characters using a string break character in JavaScript.
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JavaScript · Find all indexes of a substring in a JavaScript string
Create a generator function that finds all the indexes of a substring in a given string.
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JavaScript · Apply a mapping function to each character in a JavaScript string
Learn how to replicate the behavior of
Array.prototype.map()for strings. -
JavaScript · Check if a JavaScript collection is empty
Quickly determine if a collection of values is empty in JavaScript.
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JavaScript · Remove accents from a JavaScript string
Learn how to remove accents from a string in JavaScript, quickly and efficiently.
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JavaScript · Calculate the Levenshtein distance between two strings in JavaScript
Implement the Levenshtein distance algorithm in JavaScript to calculate the difference between two strings.
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JavaScript · Capitalize the first letter of a JavaScript string
Learn how to capitalize the first letter of a string in JavaScript using array destructuring and
String.prototype.toUpperCase(). -
JavaScript · Generate a random alphanumeric JavaScript string
Use JavaScript to generate a random alphanumeric string of a specified length.
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JavaScript · Check if a JavaScript string is an anagram of another string
Check if a string is an anagram of another string, handling case-insensitivity and special characters.
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JavaScript · Escape or unescape HTML using JavaScript
Learn how to convert text into HTML-safe strings and vice versa using JavaScript.
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JavaScript · Can I validate an email address in JavaScript?
Email address validation can be much trickier than it sounds. Here's why and my advice on how to approach this problem.
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JavaScript · Check if a string is a yes/no answer with JavaScript
Quickly and easily check if a string is a yes/no answer to a boolean question in your CLI programs.
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JavaScript · How can I truncate a string to a specified length using JavaScript?
String splitting and truncation, both simple and locale-sensitive are possible in JavaScript. Learn how in this guide.
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JavaScript · How can I generate all partial substrings of a string in JavaScript?
Get all the partial substrings of a string in JavaScript using generator functions.
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JavaScript · Check if a JavaScript string contains only alpha or alphanumeric characters
Use a regular expression to check if a string contains only alpha or alphanumeric characters in JavaScript.
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JavaScript · Get colon time from a JavaScript date
Get the time part of a Date object in the format HH:MM:SS.
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JavaScript · Compare strings regardless of case and accent
Here's a quick tip on how to compare and sort arrays of strings, ignoring case and accents.
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JavaScript · Regular Expressions Cheat Sheet
Regular expressions are a very useful tool. Save this cheatsheet for when you need to look up their syntax and speed up your development.
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JavaScript · Check if a URL is an absolute URL with JavaScript
Want to know if a string is an absolute URL? This article will help you out.