String startsWith()
str.startsWith(search, start)
str
is a stringsearch
is a stringstart
is an integer, and optional
startsWith() method returns true
if the string str
starts with the specified search
string, or else it returns false
. If start
is provided, only the part of the string str
from the specified start
index position is considered for checking.
Examples
1. check if string value in name
starts with search string 'ap'
.
let name = 'apple';
let output = name.startsWith('ap');
console.log(output);
2. check if string value in name
starts with search string 'ba'
.
let name = 'apple';
let output = name.startsWith('ba');
console.log(output);
3. check if string value in name
starts with search string 'pp'
with a start index of 1
.
let name = 'apple';
let output = name.startsWith('pp', 1);
console.log(output);