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HTML Articles
Page 134 of 151
What is the usage of onunload event in JavaScript?
The unload event trigger when you unload (or refresh) a page. You can try to run the following code to learn how to implement onunload event in JavaScript.Example Close the page and see what happens! This event may give unexpected results. function newFunc() { alert("Thank you!"); }
Read MoreWhat is the usage of onscroll event in JavaScript?
The onscroll event occurs when scrollbar is being scrolled for an element. You can try to run the following code to learn how to implement onscroll event in JavaScript.Example div { border: 2px solid blue; width: 300px; height: 100px; overflow: scroll; } This is ...
Read MoreWhat is the usage of onpagehide event in JavaScript?
The onpagehide event triggers in JavaScript when a user leaves the page and decides to move to another. Some examples include age refresh, a link is clicked, etc.ExampleYou can try the following code to learn how to implement onpagehide event in JavaScript. Close the page and see what happens! function newFunc() { alert("Thank you!"); }
Read MoreWhat is the usage of the onbeforeunload event in JavaScript?
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"; }
Read MoreWhat is the usage of onpageshow event in JavaScript?
The onpageshow event triggers in JavaScript when a user reaches the new web page.ExampleYou can try to run the following code to learn how to implement onpageshow event in JavaScript. On first visit, a welcome message is visible. function newFunc() { alert("Welcome!"); }
Read MoreWhat is the usage of onhashchange event in JavaScript?
When anchor part is changed, then the onhashchange event occurs. You can try to run the following code to learn how to implement onhashchange event in JavaScript.Example Click to change anchor function functionChange() { location.hash = "about"; var hash = location.hash; document.write("The anchor part is now: " + hash); } // If the achor part is changed function newFunc() { alert("Anchor part changed!"); }
Read MoreHow to stop the execution of a function with JavaScript?
To stop the execution of a function in JavaScript, use the clearTimeout() method. This function call clears any timer set by the setTimeout() functions.ExampleYou can try to run the following code to learn how to work with clearTimeout() method in JavaScript. JavaScript clearTimeout() method Click the buttons below to handle animation
Read MoreWhat is the usage of an abort event in JavaScript?
Use the on abort event to abort the loading of an image. You can try to run the following code to learn how to implement an abort event in JavaScript.Example function abortFunc() { alert('Error- Loading of the image aborted'); }
Read MoreWhat is the role of scrollX property in JavaScript?
The scrollX property in JavaScript works the same as pageXoffset property. If you want to get the pixels the document scrolled to from the upper left corner of the window, then use the scrollX property for horizontal pixels.ExampleYou can try to run the following code to learn how to work with scrollX property in JavaScript. div { background-color: yellow; height: 1500px; width: 1500px; } function scrollFunc() { window.scrollBy(200, 200); alert("Horizontal: " + window.scrollX); } Scroll
Read MoreHow to return a random number between 0 and 199 with JavaScript?
To return a random number between 0 and 199, use the JavaScript Math.random() and Math.floor() method.ExampleYou can try to run the following code to return a random number in JavaScript. document.write(Math.floor(Math.random() * 200));
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