Here is one way: const date1 = new Date(‘7/13/2010′); const date2 = new Date(’12/15/2010’); const diffTime = Math.abs(date2 – date1); const diffDays = Math.ceil(diffTime / (1000 * 60 * 60 * 24)); console.log(diffTime + ” milliseconds”); console.log(diffDays + ” days”); Observe that we need to enclose the date in quotes. The rest of the code … Read more
Yes, it’s doable due to jQuery’s noconflict mode. http://blog.nemikor.com/2009/10/03/using-multiple-versions-of-jquery/ <!– load jQuery 1.1.3 –> <script type=”text/javascript” src=”http://example.com/jquery-1.1.3.js”></script> <script type=”text/javascript”> var jQuery_1_1_3 = $.noConflict(true); </script> <!– load jQuery 1.3.2 –> <script type=”text/javascript” src=”http://example.com/jquery-1.3.2.js”></script> <script type=”text/javascript”> var jQuery_1_3_2 = $.noConflict(true); </script> Then, instead of $(‘#selector’).function();, you’d do jQuery_1_3_2(‘#selector’).function(); or jQuery_1_1_3(‘#selector’).function();.
How can I pad a value with leading zeros?
My understanding is that this is actually very simple: Javascript is always pass by value, but when a variable refers to an object (including arrays), the “value” is a reference to the object. Changing the value of a variable never changes the underlying primitive or object, it just points the variable to a new primitive … Read more
There’s no built-in ability to break in forEach. To interrupt execution you would have to throw an exception of some sort. eg. var BreakException = {}; try { [1, 2, 3].forEach(function(el) { console.log(el); if (el === 2) throw BreakException; }); } catch (e) { if (e !== BreakException) throw e; } JavaScript exceptions aren’t terribly … Read more
How to get client’s IP address using JavaScript?
The code below demonstrates on how to do this. var http = new XMLHttpRequest(); var url=”get_data.php”; var params=”orem=ipsum&name=binny”; http.open(‘POST’, url, true); //Send the proper header information along with the request http.setRequestHeader(‘Content-type’, ‘application/x-www-form-urlencoded’); http.onreadystatechange = function() {//Call a function when the state changes. if(http.readyState == 4 && http.status == 200) { alert(http.responseText); } } http.send(params); In … Read more
What’s the difference? The .then() call will return a promise that will be rejected in case the callback throws an error. This means, when your success logger fails, the error would be passed to the following .catch() callback, but not to the fail callback that goes alongside success. Here’s a control flow diagram: To express … Read more
A simple solution is to have your factory return an object and let your controllers work with a reference to the same object: JS: // declare the app with no dependencies var myApp = angular.module(‘myApp’, []); // Create the factory that share the Fact myApp.factory(‘Fact’, function(){ return { Field: ” }; }); // Two controllers … Read more
Examining objects via console.log happens in an asynchronous manner. The console receives a reference to the object synchronously, but does not display the properties of the object until it is expanded (in some cases, depending on the browser and whether you have dev tools open when the log happens). If the object has been modified … Read more