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The replace () method searches a string for a value or a regular expression. The replace () method returns a new string with the value (s) replaced. The replace () method does not change the original string. If you replace a value, only the first instance will be replaced.
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- Try It Yourself
In this tutorial, you'll how to use JavaScript String replace() function to replace a substring in a string with a new one.
let text = text.replace(/(\r?\n){2,}/g, '<br><br>'); text = text.replace(/(\r?\n)/g, '<br>'); First line: Search for \n OR \r\n where at least 2 of them are in a row, e.g. \n\n\n\n. Then replace it with 2 br. Second line: Search for all single \r\n or \n and replace them with <br>
25 lip 2024 · The replace() method of String values returns a new string with one, some, or all matches of a pattern replaced by a replacement. The pattern can be a string or a RegExp, and the replacement can be a string or a function called for each match.
The replace () method in JavaScript is used to replace a part of a string with another string. It matches a pattern within the string using a string or regular expression and replaces it with a replacement string or a function. The original string is not modified.
Example. Let's take a look at an example of how to use the replace () method in JavaScript. String as the Search Expression. The simplest way to use the replace () method is to find and replace one string with another string. This method does not involve regular expression objects. For example: var totn_string = 'TechOnTheNet is great';
JavaScript String replace () The replace() method returns a new string with the specified string / regex replaced. Example. const message = "ball bat"; // replace the first b with c let result = message.replace('b', 'c'); console.log(result); // Output: call bat. Run Code.
