JavaScript: String.prototype.startsWith
New in JS2015.
str.startsWith(searchString)
-
Return
true
if str starts with searchString. Else, returnfalse
. str.startsWith(searchString, position)
- Check if start from position.
const ss = "abcd"; console.log(ss.startsWith("ab")); console.log(ss.startsWith("b") === false); console.log(ss.startsWith("b", 1));