How Can I Use Variables in Regular Expressions with JavaScript's `replaceAll` Method?

Utilizing Variables in Regular Expressions for JavaScript's ReplaceAll Method

The String.replaceAll() method provides a concise solution for replacing substrings within a string. However, integrating variables into a regular expression can present a challenge.

To resolve this issue, consider constructing a RegExp object dynamically instead of using the traditional /sREGEXs/g syntax. Using String.raw`` ensures that any special characters within the variable remain intact.

const variable = 'REGEX';
const re = new RegExp(String.raw`\s${variable}\s`, "g");

This approach grants flexibility in dynamically creating regex objects based on your requirements. Subsequently, you can employ the replace() method to perform the desired replacements.

"mystring1".replace(re, "newstring");

Note for Older Browsers or Node.js:

For older browsers or Node.js versions, you can use the following syntax:

const re = new RegExp("\s" + variable + "\s", "g");
"mystring1".replace(re, "newstring");

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