How to replace the string using regex in javascript?

@tressie.damore 

In JavaScript, you can use the replace() method along with regular expressions to replace a specific string. Here's an example of how you can do this:

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let str = "Hello, World! This is a test string.";
let newStr = str.replace(/test/, "replacement");

console.log(newStr); // Output: Hello, World! This is a replacement string.

In the above example, we used the /test/ regular expression to match the word "test" in the original string and replaced it with the word "replacement". You can use more complex regular expressions to match patterns and replace them as needed.