If you want to trigger an event before the document is loaded, then use the onbeforeunload event.ExampleYou can try to run the following code to learn how to implement onbeforeunload event in JavaScript.           Click to open Qries                function myFunction() {             return "Working with onbeforeunload event";          }          

A regular expression is an object that describes a pattern of characters.The JavaScript RegExp class represents regular expressions, and both String and RegExp define methods that use regular expressions to perform powerful pattern-matching and search-and-replace functions on the text. A regular expression could be defined with the RegExp () constructor, ... Read More

You can parse JSON files using the json module in Python. This module parses the json and puts it in a dict. You can then get the values from this like a normal dict. For example, if you have a json with the following content −{    "id": "file",   ... Read More

Use the min attribute to add the minimum value in HTML. You can try to run the following code to implement min attribute −Example                    Rank:                              

When the mouse pointer moves out of an element, the onmouseout attribute triggers. You can try the following code to implement onmouseout attribute −Example                    This is demo heading.             Click above and then release.                function mouseOut() {             document.getElementById("myid").style.color = "red";          }          

Use the default attribute to identify that the track is to be enabled, if you’re providing with two subtitle tracks for the video.ExampleYou can try the following code to implement the default attribute for tracks −                                                            Your browser does not support the video element.          

Java lang package provides Integer class which has methods to convert an integer to String and vice versa. You can convert a String to an integer using the parseInt() method and Integer to String using the toString() method.ExampleLive Demopublic class Sample {    public static void main(String args[]){       ... Read More

The split(String regex) method of the String class splits this string around matches of the given regular expression.ExampleLive Demopublic class Sample{    public static void main(String args[]){       String s = "|A|BB||CCC|||";       String[] words = s.split("\|");       for (String string : words) {          System.out.println(string);       }    } }OutputA BB CCC

Java provides the java.util.regex package for pattern matching with regular expressions. Java regular expressions are very similar to the Perl programming language and very easy to learn.A regular expression is a special sequence of characters that help you match or find other strings or sets of strings, using a specialized ... Read More

The indexOf(Object) method of the java.util.ArrayList class returns the index of the first occurrence of the specified element in this list, or -1 if this list does not contain the element.Exampleimport java.util.ArrayList; public class ArrayListDemo {    public static void main(String[] args) {       ArrayList arrlist = new ... Read More