ECMAScript 6 String.prototype.endsWith() method can be used to check if a string ends with a suffix. But it is not yet supported by all browsers. Another approach is to use substring.
if (big.indexOf(small) == big.length-small.length) {
...
}
Example – case sensitive string ends with check
<script>
var big = "Hello World";
var small = "World";
if (big.substring(big.length-small.length, big.length) == small) {
document.write("big string ends with small string");
}
</script>Example – string ends with check ignoring case
<script>
var big = "hello World";
var small = "world";
if (big.toLowerCase().substring(big.length-small.length, big.length) == small.toLowerCase()) {
document.write("big string ends with small string (ignoring case)");
}
</script>
