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javascriptnode.jsregexpcre

Remove whitespace from spaced-out word?

Assume the following string:

hello world, h e l l o! hi. I am happy to see you!

Is there a way to remove whitespace in the spaced out word, like so?:

hello world, hello! hi. I am happy to see you!

I tried [^ ]+(\s) but the capture group matches all spaces. thank you.

Solution

  • One regex approach might be:

    var input = "hello world, h e l l o! hi. I am happy to see you!";
var output = input.replace(/(?<=\b\w)\s+(?=\w\b)/g, "");
console.log(output);

    Here is an explanation of the regex pattern, which targets whitespace situated in between two standalone single word characters on both sides:

    (?<=\b\w)  assert that what precedes is a single character
\s+        match one or more whitespace characters
(?=\w\b)   assert that what follows is a single character