programming-examples/js/String/Check whether an 'input' is a string or not.js

    is_string = function(input) {  
      if (Object.prototype.toString.call(input) === '[object String]')  
        return true;  
      else  
        return false;     
        };  
    console.log(is_string('w3resource'));  
    console.log(is_string([1, 2, 4, 0]));