Replace all occurence of String in JavaScript

Hi All,

 I came across an issue in JavaScript where i was not able to replace all the occurrences of a string in another string.

 A simple string.replace would only replace the first occurence.

str.replace("hello", 'hi');

We can make a small tweak in the existing code and make it work.Below is an example.
str.replace(new RegExp('hello', 'g'), 'hi');

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