To check if a string has white space with JavaScript, we can use the regex test method.
For instance, we write
const hasWhiteSpace = (s) => {
return /\s/g.test(s);
};
to define the hasWhiteSpace function that checks if string s has any whitespaces with /\s/g.test.
We use \s to match any whitespaces in s.
The g flag makes test check for all instances of whitespaces.
Conclusion
To check if a string has white space with JavaScript, we can use the regex test method.