Pop() to remove last element of an array
We can remove the last element of the array by applying pop() method to the JavaScript function. This way the array length or size also decreases by one. Here is the syntax of applying pop() method to an array
scripts.pop();We can use shift() to remove first element from the array
Here is the complete code for example of pop() function.
<script type="text/javascript">
var scripts = new Array();
scripts[0] = "PHP";
scripts[1] = "ASP";
scripts[2] = "JavaScript";
scripts[3] = "HTML";
document.write(scripts.join(" <br> "));
document.write("<br>--Now after applying pop()--<br>");
scripts.pop();
document.write(scripts.join(" <br> "));
</script>Getting the last element after removal
<script type="text/javascript">
var scripts = new Array();
scripts[0] = "PHP";
scripts[1] = "ASP";
scripts[2] = "JavaScript";
scripts[3] = "HTML";
var str=scripts.pop();
document.write(str);
</script>HTMLNumeric Keys
The assigned numeric keys are remain same after applying pop()<script type="text/javascript">
var scripts = new Array();
scripts[0] = "PHP";
scripts[1] = "ASP";
scripts[2] = "JavaScript";
scripts[3] = "HTML";
scripts.pop();
for (var key in scripts) {
document.write("key : " + key + " =>value: " + scripts[key] + "<br>");
}
</script>key : 0 =>value: PHP
key : 1 =>value: ASP
key : 2 =>value: JavaScriptArray Reference How to display elements of an Array
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