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Regex add space between characters JavaScript

The regex to add space between characters is /(?=.)/g. This regular expression uses a positive lookahead assertion that selects each character.

You pass this regular expression as the first argument and space as the second argument to the string replace() method.

let str = 'JavaScript';
str = str.replace(/(?=.)/g, ' ');
str = str.trim();


"J a v a S c r i p t"

Explanation of the code:

1. In regular expression, a dot means any character. When the dot is used with a positive lookahead, it selects each character.

2. The string produced by the replace() method has a space at the beginning, so to remove that space trim() method was called.

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