Javascript - Find Comma Exists In String

.search() is used for regular expressions, making it a bit overkill for this situation.

Instead, you can simply use indexOf():

if (str.indexOf(',') != -1) {
    var segments = str.split(',');
}

.indexOf() returns the position of the first occurrence of the specified string, or -1 if the string is not found.

Use new functions natively coming from ES6:

const text = "Hello, my friend!";
const areThereAnyCommas = text.includes(',');

Try using indexOf function:

if (string.indexOf(',') > -1) { string.split(',') }

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