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Front End Technology Articles
Page 578 of 652
How to make text bold, italic and underline using jQuery
To make text bold, italic and underline using jQuery, use the jQuery css() method with the CSS properties font-style, font-weight and text-decoration. You can try to run the following code to learn how to make text bold, italic and underline using jQuery −ExampleLive Demo $(document).ready(function(){ $("p").on({ mouseenter: function(){ $(this).css({"font-style": "italic", "font-weight": "bold","text-decoration": "underline"}); } }); }); Move the mouse pointer on the text to make text bold, italic and underline.
Read MoreHow can I change the font family and font size with jQuery?
To change the font family and font size with jQuery, use the jQuery css() method. The css property font-family and font-size is used. You can try to run the following code to learn how to change font family and font size with jQuery −ExampleLive Demo $(document).ready(function() { $("p").on({ mouseenter: function() { $(this).css({"font-family": "Arial, Helvetica, sans-serif", "font-size": "200%"}); } }); }); Move the mouse pointer on the text to change the font family and size.
Read MoreHow can I change the text color with jQuery?
To change the text color with jQuery, use the jQuery css() method. The color css property is used to change text color.ExampleYou can try to run the following code to learn how to change text color with jQuery −Live Demo $(document).ready(function(){ $("p").on({ mouseenter: function(){ $(this).css("color", "red"); } }); }); Move the mouse pointer on the text to change the text color.
Read MoreHow to return variable value from jQuery event function?
You cannot return variable value from jQuery event function. To understand the reason, let us see how data is passed, which was created in the event handler of a button click.ExampleLive Demo $(document).ready(function(){ var a=document.getElementById('demo'); a.addEventListener('click', function(){ var s='Hello World!'; var event = new CustomEvent('build', { 'detail': s }); this.dispatchEvent(event); }) document.getElementById('parent').addEventListener('build', getData, true); function getData(e){ alert(e.detail); } }); Click me
Read MoreHow to handle when checkbox 'checked state' changed event in jQuery?
To handle the checkbox checked state, use the change event. It will check whether the checkox is checked or not.ExampleYou can try to run the following code to learn how to handle when checkbox checked state changed event in jQuery −Live Demo jQuery Checkbox state b { color: red; } Check/ Uncheck this checkbox $( "input" ).change(function() { var $input = $( this ); $( "p" ).html( ".attr( \"checked\" ): " + $input.attr( "checked" ) + "" + ".prop( \"checked\" ): " + $input.prop( "checked" ) + "" + ".is( \":checked\" ): " + $input.is( ":checked" ) + "" ); }).change();
Read MoreCan I wrap a JavaScript event in a jQuery event?
Yes, you can wrap a JavaScript event in a jQuery event. For wrapping, use the event object. You can try to run the following code to wrap a JavaScript event in a jQuery event −ExampleLive Demo $(document).ready(function(){ $('a.one').click(function(event){ event.preventDefault(); }); function test(event){ $.Event(event).preventDefault(); } }); a.test { font-weight: bold; } body { font-family:sans-serif; } Tutorials QA
Read MoreHow to disable copy content function using jQuery?
To disable cut, copy and paste of a content in jQuery, use the jQuery bind() function.ExampleYou can try to run the following code to disable copy paste of content using jQuery −Live Demo $(document).ready(function(){ $('#mytext').bind("cut copy paste",function(e) { e.preventDefault(); }); }); Copy, cut and paste function doesn't work here.
Read MoreWhat is the jQuery Event for user pressing enter in a textbox?
The jQuery event for user pressing enter is keyup and keyCode. You can try to run the following code to trigger an event on pressing enter key in textbox,ExampleLive Demo $(document).ready(function(){ $('input').bind("enterKey",function(e){ alert("Enter key pressed"); }); $('input').keyup(function(e){ if(e.keyCode == 13) { $(this).trigger("enterKey"); } }); }); Press Enter key in the above input text.
Read MoreWhat are jQuery Event Helper Methods?
jQuery also provides a set of event helper method which can be used either to trigger an event to bind any event types mentioned above.Trigger MethodsThe following is an example which would triggers the blur event on all paragraphs −$("p").blur();Binding MethodsThe following is an example which would bind a click event on all the −$("div").click( function () { // do something here });Here are some of the jQuery Event Helper methods:S. NoMethod & Description1.blur()Triggers the blur event of each matched element.2.blur( fn )Bind a function to the blur event of each matched element.3.click( )Triggers the click event of ...
Read MoreWhat is the sequence of jQuery events triggered?
The jQuery event handlers always execute in the order they were bound. With jQuery, you can also change the sequence. Let’s see how, for example, fromdemo(1); demo(2);We can change the sequence to −demo(2); demo(1);ExampleYou can try to run the following to learn and change the sequence of jQuery events −Live Demo $(document).ready(function(){ $.fn.bindFirst = function(name, fn) { this.on(name, fn); this.each(function() { var handlers = $._data(this, 'events')[name.split('.')[0]]; var handler = handlers.pop(); ...
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