![]() ![]() To use RegEx, the first argument of replace will be replaced with regex syntax, for example /regex/. replace means we can replace patterns and not just exact characters. RegEx can be effectively used to recreate patterns. ![]() replace method used with RegEx can achieve this. What if we're concerned with a pattern instead? Maybe, a number, two letters, and the word "foo" or three symbols used together? replace above is limited: the characters to be replaced are known - "ava". It is often used like so: const str = 'JavaScript' Īs you can see above, the replace method accepts two arguments: the string to be replaced, and what the string would be replaced with. replace method is used on strings in JavaScript to replace parts of string with characters. With RegEx, you can match strings at points that match specific characters (for example, JavaScript) or patterns (for example, NumberStringSymbol - 3a&). Regular Expressions (also called RegEx or RegExp) are a powerful way to analyze text. ![]()
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