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Get selected value/text from Select on change
I need to get the value of the selected option in javascript: does anyone know how to get the selected value or text, please tell how to write a function for it. I have assigned onchange() function to select so what do i do after that?
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In jQuery, how do I get the value of a radio button when they all have the same name?
...const val = $('input[name=q12_3]:checked').val();
alert(val);
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table>
<tr>
<td>Sales Promotion</td>
<td><input type="radio" name="q12_3" val...
jQuery hasAttr checking to see if there is an attribute on an element [duplicate]
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"undefined" isn't a keyword in javascript (see constc.blogspot.com/2008/07/…). Putting "var undefined;" as the first line of your hasAttr() function is the easiest fix for this.
– mhenry1384
Apr 4 '11 at 22:54
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angularjs directive call function specified in attribute and pass an argument to it
...heMethodToBeCalled'>Click me</div>
</div>
</div>
<script>
var app = angular.module('myApp',[]);
app.directive("myMethod",function($parse) {
var directiveDefinitionObject = {
restrict: 'A',
scope: { method:'&myMethod' },
link: ...
Check if page gets reloaded or refreshed in JavaScript
...L in the browser's address bar, form submission, or initializing through a script operation other than reload and back_forward as listed below.
reload — Navigation is through the browser's reload operation or location.reload().
back_forward — Navigation is through the browser's history traversal...
What is a practical use for a closure in JavaScript?
I'm trying my hardest to wrap my head around JavaScript closures.
22 Answers
22
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Using jQuery To Get Size of Viewport
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1. Response to the main question
The script $(window).height() does work well (showing the viewport's height and not the document with scrolling height), BUT it needs that you put correctly the doctype tag in your document, for example these doctypes:
For HTML ...
How to set data attributes in HTML elements
...r thing;
HTML
<div id="mydiv" data-myval="JohnCena"></div>
Script
$('#mydiv').attr('data-myval', 'Undertaker'); // sets
$('#mydiv').attr('data-myval'); // gets
OR
$('#mydiv').data('myval'); // gets value
$('#mydiv').data('myval','John Cena'); // sets value
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jQuery how to bind onclick event to dynamically added HTML element [duplicate]
...ith() on a single element. Note that this is just a proof of concept.
<script>
// This simulates the object to handle
var staticObj = [
{ ID: '1', Name: 'Foo' },
{ ID: '2', Name: 'Foo' },
{ ID: '3', Name: 'Foo' }
];
staticObj[1].children = [
{ I...
How to make an AJAX call without jQuery?
How to make an AJAX call using JavaScript, without using jQuery?
23 Answers
23
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