How to Remove Non-Alphanumeric Characters from a String in JavaScript?

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To remove non-alphanumeric characters from a string in JavaScript, you can use the replace() method and a regular expression. Here’s an example:

let str = "This is a string!";
let newStr = str.replace(/[^a-zA-Z0-9]/g, "");
console.log(newStr);

This code removes all non-alphanumeric characters from the string "This is a string!" using the replace() method and a regular expression and logs the modified string: "Thisisastring".

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