Question

How to use startsWith() to determine whether a string begins with the characters of another string in JavaScript

Answer 1

// str.startsWith(searchString[, position])

var s = "determines whether a string begins with another string";

document.write(s.startsWith('determines') + "<br />");
document.write(s.startsWith('deter') + "<br />");
document.write(s.startsWith('hi') + "<br />");
document.write(s.startsWith('whether') + "<br />");
document.write(s.startsWith('whether', 11) + "<br />"); // start search from char 11 s[11]


/*
run:

true
true
false
false
true

*/

 

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