How can I remove extra white space in a string in JavaScript?

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How can I remove extra white space (i.e. more than one white space character in a row) from text in JavaScript?

E.g

match the start using.

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2021-02-09 02:18

This can be done also with javascript logic.
here is a reusable function I wrote for that task.
LIVE DEMO



  
  
  
    result:

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