JavaScript Replace specific words in a string

Question

How do you replace specific words from a string? If I want to replace ["hi", "hello", "welcome"] with greetings in this string. (Case-insensitive)

So Hi there Welcome hi would become greetings there greetings greetings.

Yes but I can't figure out how to make it with multiple words. — Tim, Aug 08 '18 at 09:17
Possible duplicate of [Replace multiple strings at once](https://stackoverflow.com/questions/5069464/replace-multiple-strings-at-once) — barbsan, Aug 08 '18 at 09:28

Faiz Akram · Accepted Answer · 2018-08-08T09:21:14.910

0

Follow the Example

String.prototype.allReplace = function(obj) {
    var retStr = this;
    for (var x in obj) {
        retStr = retStr.replace(new RegExp(x, 'g'), obj[x]);
    }
    return retStr;
};
var v = 'aabbaabbcc'.allReplace({'a': 'h', 'b': 'o'});

edited Aug 08 '18 at 09:21

answered Aug 08 '18 at 09:13

Faiz Akram

559
4
10

Yes, but that would work if I did it with one word at a time. I want to be able to do it with a big array that could change. – Tim Aug 08 '18 at 09:14

JavaScript Replace specific words in a string

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