js identify if text contains whitespace code example

Example 1: javascript detect space in string

if(str.indexOf(' ') >= 0){
    console.log("contains spaces");
}

Example 2: check whitespace in javascript

if (/\s/.test(str)) {
    // It has any kind of whitespace
}

Example 3: check if input have word not space only

if (/\s/.test(str)) {
    // It has any kind of whitespace
}