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Hi there everyone how can I detect if the user input has just empty spaces?

Detect this:

input = ' ';
input = '          ';
etc...

DO NOT detect this:

input 'hi there';

I just want to detect if there is a space in the input and that's it?

Here is what i have tried:

function whitespaceDetect(s) {
  return /\s/g.test(s);
}

if(whitespaceDetect(document.getElementById("name").value)) {
    alert('error!');
}

but this comes up with an error if the name is "john doe";

What way is the fastest to process? How can i achieve this with or without jquery?

Wiktor Stribiżew
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pixie123
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1 Answers1

1

function trim

str.trim() === ''
Ele
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  • I agree with this. It makes more sense than trying to check for "empty spaces". +1 – BSK Apr 22 '18 at 00:09