google+javascriptbanktwitter@js_bankfacebook@jsbankrss@jsbank






Test du temps à se charger JavaScript et DOM avec JQuery Nous avons beaucoup de façons d'obtenir le temps de chargement JavaScript et DOM sur les pages Web, et JavaScript cet article présente l'une des méthodes qui utilisent jQuery Pour ce faire, voilà jQTester.


Étiquette: test, heure, charger, DOM, jQuery, méthode, jQTester

Gratuit iPage hébergement Web pour la première année MOMENT



Si vous êtes toujours à la recherche d'un fournisseur d'hébergement Web fiable avec des tarifs abordables, pourquoi vous ne prenez pas un peu de temps pour essayer iPage, seulement avec $1.89/month, inclus $500+ Crédits supplémentaires gratuites pour le paiement de 24 mois ($45)?

Plus de 1.000.000 de clients + existisng peuvent pas avoir tort, vraiment vous n'êtes pas aussi! Plus important encore, lorsque vous enregistrez l'hébergement web à iPage grâce à notre lien, nous allons être heureux de renvoyer un plein remboursement. C'est génial! Vous devriez essayer iPage hébergement web GRATUITEMENT maintenant! Et contactez-nous pour tout ce que vous devez savoir sur iPage.
Essayez iPage GRATUIT première année MOMENT

So I have been trying to figure out a really simple, easy way to test the load times of my Javascript in the page, and have ended up creating a simple load time tester using jQuery called jQTester.

jQTester

jQTester Displaying its results

This assumes you are using jQuery, and are running using version 1.3.1 - however it should work on most versions as the jQuery I am using is pretty lightweight.

The concept is simple - you have 2 files called start.js and end.js. Place start.js at the top, just after your <HEAD> tag, and place end.js just before </body>. Using javascript timers I am capturing the length of time between start.js loading, and the document.ready jQuery function running (when, all javascript and DOM elements should be loaded and ready to use).

Why place end.js before </body> ?

So, ideally you are placing your javascript calls at the end of the HTML document. Why? because javascript file downloads block parallel downloads in the browser. Browsers can only download 2 files per hostname at any one time, so by placing them in the <HEAD> you are in theory stopping anything else from loading within the page whilst all your javascript is being loaded. By placing them at the end of the HTML document, images etc have the chance to load first, so the perception for the user is faster load times.

So the browser will load your HTML document top to bottom. Based on the assumption that no other javascript needs to load after </body> is called, the best place to stop the timer is at that last point. That's when the clock stops, and we assume we're all loaded.

jQTester 0.1

So I'm not really 100% sure if this is the right way to go about this, but anyway - I've packaged this up as "jQTester" and am attaching version 0.1 for your perusal. It would be good to get some feedback on how I can move forward with this, as I am keen to develop a tool or plugin that can sit within the page code, rather than being a browser add-on etc.

Install instructions: Use jQuery, place start.js after the <head> tag and place end.js before the </body> tag.

iPhoneKer.com
Save up to 630$ when buy new iPhone 15

GateIO.gomymobi.com
Free Airdrops to Claim, Share Up to $150,000 per Project

https://tooly.win
Open tool hub for free to use by any one for every one with hundreds of tools

chatGPTaz.com, chatGPT4.win, chatGPT2.fun, re-chatGPT.com
Talk to ChatGPT by your mother language

Dall-E-OpenAI.com
Generate creative images automatically with AI

AIVideo-App.com
Render creative video automatically with AI

JavaScript par jour


Google Safe Browsing McAfee SiteAdvisor Norton SafeWeb Dr.Web