Three implementation methods for javascript to intercept the specified string from the right

Intercept the fg on the right side of abcdefg

Method one

<script>

string="abcdefg"

alert(string.substring(string.length-2,string.length))

</script>

Method 2

<script>

alert("abcdefg".match(/.*(.{2})/)[1])

</script>

<script>

alert("abcdefg".match(/.{2}$/))

</script>

Method 3

<script>

alert("abcdefg".slice(-2)) //Recommend this, it is relatively simple, -2 means to take the two characters on the right

</script>