Dianne Pena

Learn the different ways you can use the spread operator in JavaScript, and the main difference between the spread and rest operators.

In this quick JavaScript regex matching guide, you'll learn how to test if a string matches a regular expression using the test() method.

Learn how to transform the character case of a string — to uppercase, lowercase, and title case — using native JavaScript methods.

Learn how to split a string into substrings in JavaScript with both the substring() and split() methods, and how to choose which one to use.

Learn how to convert numbers to ordinals in JavaScript. Getting the ordinal of a number allows you to display it in a human-readable format.

Learn three simple ways to convert a string into a number in JavaScript, with simple-to-follow examples and tips on which method to use.

Learn four simple ways to convert a number into a string in JavaScript, with simple-to-follow examples and tips on which method to use.