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 arrayscripts.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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More on JavaScript Arrays : Create , display and Applications
JavaScript Array Displaying elements of an array by looping through join():Displaying elements of an array using join() function sort():Sorting of elements of an array using function length:Length property to get the total number of elements in an array reverse():Reversing the elements of an array pop():Removeing last element of an array by using pop() shift():Removeing first element of an array using shift() Removeing all element of an array push():Adding elements to array using push() unshift():Adding elements to array using unshift() splice():Add replace remove elements from an array using splice() split():Creating array by splitting string variable toString: To join all elements and create a string concat: To join two or more arrays to a single array slice: To return element from an array with starting and ending positions Two Dimensional Array: Adding and displaying elements searching for matching element inside an array by using indexOf function All elements of the array separated by comma