Check if string starts with specific prefix
Given a string and prefix string, check if the string starts with the prefix string using JavaScript.
Solution
To check if a string starts with a specific prefix string using JavaScript, we can use String.startsWith() method. call startsWith()
method on the string, and pass the prefix string as argument.
startsWith()
returns true
if the string starts with the given prefix string, or false
if the string does not start with the given prefix string.
Program
1. given string is str
and prefix string is prefix
. check if string str
starts with prefix
str = "hello world";
prefix = "he";
if ( str.startsWith(prefix) ) {
console.log('string starts with given prefix');
} else {
console.log('string does not start with given prefix');
}