how to check if a string contains only spaces in javascript
let str = " ";
if (!str.replace(/\s/g, "").length) {
console.log("string only contains whitespace (ie. spaces, tabs or line breaks)");
}how to check if a string contains only spaces in javascript
let str = " ";
if (!str.replace(/\s/g, "").length) {
console.log("string only contains whitespace (ie. spaces, tabs or line breaks)");
}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 falseCopyright © 2021 Codeinu
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