Answers for "javascript check if string contains whitespace regex"

regex for check if string is only empty or whitespace javascript

//empty string or white space
function hasWhiteSpace(value) {
  return /^\s*$/.test(value);
}

// empty string or string with white space 
function hasWhiteSpace(value) {
  return /^$|\s+/.test(value);
 }

find whitespace in string js

var containsWhitespace = function(str){
	return /\s/g.test(s);
};
console.log(containsSpaces("foo bar"));//Returns true
console.log(containsSpaces("foobar"));//Returns false