Learn ECMAScript - Second Edition

The startsWith(string, index) method

The startsWith() method is used to find whether a string begins with the characters of another string, returning true or false as appropriate. Here is an example to demonstrate this:

const str = "Hi, I am a JS Developer";console.log(str.startsWith('Hi, I am')); //Output "true"

It takes an optional second parameter representing the position in the string at which to begin searching. Here is an example to demonstrate this:

const str = "Hi, I am a JS Developer";console.log(str.startsWith('JS Developer', 11)); //Output "true"