JavaScript String
It is an object which is a combination of sequence of character. We define it in two way:
-
By using lateral (using double quotes)
-
By using “new” keyword
Ex.
By using lateral (using double quotes)
<script>
var str="Hi";
document.write(str);
</script>
By using “new” keyword
<script>
var str=new String("Hi, JS String");
document.write(str);
</script>
JavaScript string methods:
trim(), slice(), toLowerCase(), toUperCase(), indexOf(“string value to find index”), charAt(number which string char you want to find), replace(), match(), concat().
Ex.1
<script>
var str="naveenkumar";
document.write(str.charAt(2));
</script>
Result:
D
Ex.2
<script>
var s1="naveenkumar";
var s2=s1.slice(2,5);
document.write(s2);
</script>