JavaScript string methods - 1

javascript_string_methods_1.js

var name = "Nasir Jones";

// does the name contain 'Mike'?
var name_lcase = name.toLowerCase(); // converts string to lower case - easier for comparison

console.log(name_lcase); // nasir jones

var is_mike = name_lcase.indexOf('mike'); // returns the position of the given string - return -1 if not found

console.log(is_mike); // -1

if (is_mike < 0) {
    name = name.replace("Nasir", "Mike"); // replaces first occurrence of the first string with the second
    
    console.log(name); // Mike Jones
}

var name_parts = name.split(' '); // creates an array by splitting up the string on the given value

console.log(name_parts); // ["Mike", "Jones"] <- Array!

var first_name = name_parts[0]; // Mike
var last_name = name_parts[1]; // Jones

console.log(first_name);
console.log(last_name);
​