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PUBLIC MARKS from decembre with tag javascript

This month

DEV - Web developer guides | MDN

Web developer guides. These articles provide how-to information to help you make use of specific technologies and APIs.

JAVASCRIPT - syntax - What does "use strict" do in JavaScript, and what is the reasoning behind it? - Stack Overflow

The statement "use strict"; instructs the browser to use the Strict mode, which is a reduced and safer feature set of JavaScript. List of features (non-exhaustive) Disallows global variables. (Catches missing var declarations and typos in variable names) Silent failing assignments will throw error in strict mode (assigning NaN = 5;) Attempts to delete undeletable properties will throw (delete Object.prototype) Requires all property names in an object literal to be unique (var x = {x1: "1", x1: "2"}) Function parameter names must be unique (function sum (x, x) {...}) Forbids octal syntax (var x = 023; some devs assume wrongly that a preceding zero does nothing to change the number.) Forbids the with keyword eval in strict mode does not introduce new variables Forbids deleting plain names (delete x;) Forbids binding or assignment of the names eval and arguments in any form Strict mode does not alias properties of the arguments object with the formal parameters. (i.e. in function sum (a,b) { return arguments[0] + b;} This works because arguments[0] is bound to a and so on. ) arguments.callee is not supported [Ref: Strict mode, Mozilla Developer Network]

August 2017

GREASYFORK - LIBRARY - checkForBadJavascripts

checkForBadJavascripts: This is a utility function, meant to be used inside a Greasemonkey script that has the "@run-at document-start" directive set. It Checks for and deletes or replaces specific "scrip" tags.

July 2017

JAVASCRIPT - jQUERY - TUTO (trés facile ett documenté) - Simplifiez vos développements JavaScript avec jQuery

Avec ce cours, je vous propose de découvrir les multiples facettes du framework jQuery. De la sélection d'éléments à la manipulation du DOM, en passant par l'animation, les requêtes AJAX, l'utilisation et la création de plugins, la création de jeux et bien d'autres choses encore !

JAVASCRIPT - How do I remove a particular element from an array in JavaScript? - Stack Overflow

There are two major approaches: - splice(): anArray.splice(index, 1); - delete: delete anArray[index]; "array.filter(...)" function to remove unwanted items from array

JSON - What is JSON? An Introduction and Guide for Beginners

in this JSON tutorial and guide, I’m attempting to provide a fairly comprehensive discussion of JSON, its history, and its usefulness. I’ll close with a list of some practical JSON tools that might come in handy in future projects. JSON Defined JSON stands for JavaScript Object Notation and it’s a data format. That is, it’s a way to hold bits of information, similar to a database. Although JSON originated outside the ECMAScript specification, it is now closely related to JavaScript with the spec now including a JSON object and many developers incorporating it as a quasi-subset of the language.

jQUERY - JAVASCRIPT - jQuery udraggable Plugin

jquery.udraggable.js This plugin provides an API similar to jQueryUI's draggable but with support for unified mouse and touch events. It builds on Michael S. Mikowski's jquery.event.ue unified event plugin.

html - Draggable div without jQuery UI - Stack Overflow

(via)
Here's another updated code: $(document).ready(function() { var $dragging = null; $('body').on("mousedown", "div", function(e) { $(this).attr('unselectable', 'on').addClass('draggable'); var el_w = $('.draggable').outerWidth(), el_h = $('.draggable').outerHeight(); $('body').on("mousemove", function(e) { if ($dragging) { $dragging.offset({ top: e.pageY - el_h / 2, left: e.pageX - el_w / 2 }); } }); $dragging = $(e.target); }).on("mouseup", ".draggable", function(e) { $dragging = null; $(this).removeAttr('unselectable').removeClass('draggable'); }); });​

jQUERY -JqueryUI - DRAG - JqueryUI Draggable

(via)
$ (selector, context).draggable (options) Method The draggable (options) method declares that an HTML element can be moved in the HTML page. The options parameter is an object that specifies the behavior of the elements involved. Syntax $(selector, context).draggable(options); You can provide one or more options at a time using Javascript object. If there are more than one options to be provided then you will separate them using a comma as follows − $(selector, context).draggable({option1: value1, option2: value2..... });

JAVASRIPT - JavaScript Style Guide

JavaScript Coding Conventions Coding conventions are style guidelines for programming. They typically cover: Naming and declaration rules for variables and functions. Rules for the use of white space, indentation, and comments. Programming practices and principles Coding conventions secure quality: Improves code readability Make code maintenance easier

June 2017

DEV - Modernizr - Alsacreations

Modernizr est voué à la détection des fonctionnalités navigateurs via JavaScript. Il permet de prévoir des alternatives (basées sur d'autres bibliothèques) pour les moteurs ne supportant pas l'une ou l'autre des propriétés CSS, HTML, etc.

May 2017

DEV - 2009 - Useful Javascript, jQuery, and AJAX Tutorials and Resources – MLC#1 | The Blog of Joren Rapini

Many of these links are bookmarks to articles that were list themselves, so they included many items. What’s special about this list on Joren Rapini’s blog, you ask? Well, I have graciously copied and pasted the Firefox tags that I use to identify each one of these pages in my bookmarks, so you can copy and paste them right into yours! This should save you a lot of time, and give you an enormous wealth of resources to boot.

April 2017

CSS - TAB - Tab Panel, the right way...

The recipe for the best user experience: Start with POSH, a simple set of heading/div pairs Add ARIA (role, aria-selected, aria-hidden, aria-labelledby) and tabindex attributes using JavaScript as these would be confusing if there was no behavior attached to the widgets. Use JavaScript to also plug a class on the component according to its type (accordion or tabpanel). Style the widget using the selector inserted by the script, this way containers are not hidden if there is no script support. Use cursor to style the tabs because those behave like buttons (default), not links (pointer). In case the component is displayed as a Tab Panel, style it as an Accordion before its tabs start wrapping (to accomodate user’s font-size) or at narrow widths...... ../..

jQuery - javascript - JS scrollbar recommendations? - Stack Overflow

by 1 other
I like to use: - Tiny Scrollbar for the minimalist design - JQuery Custom Content Scroller

jQuery - LIBRARY - SCROLL - Tiny Scrollbar: A crossbrowser lightweight Javascript / jQuery scrollbar.

What is it? Tiny Scrollbar is a nice and elegant way to enable the scrolling of content on mobile and desktop devices. Its designed to be a dynamic lightweight utility. Furthermore it gives a User Interface Designer a powerful way of enhancing the Ui (user interface) of a website. It comes in 2 flavours as a vanilla Javascript microlib and as a jQuery plugin. Browser support differs between the jQuery plugin and the plain Javascript microlib. Specifically, the plain Javascript microlib does not support legacy browsers such as IE6-8. Use the jQuery plugin release if support for those browsers is required. Source is on GitHub

March 2017

CSS - JAVASCRIPT - Prevent White Flash While iFrame Loads | CSS-Tricks

The reason this is bad is that the CSS will hide the iframe no matter what and users with JavaScript turned off will never see that iframe. Now I'm not usually one to go to extreme lengths to cater to that crowd, but I'm all for using better solutions that do solve that issue when they are available.

February 2017

CSS / jQuery - Why I Love Element Queries & You Should Too! - Hashnode

by 1 other
For the past three years, I've done a lot of research and experiments related to the idea of style scoping and element queries in CSS. Since experimenting with element queries, I've noticed a big transformation in how I write HTML, and the fine-grained nature of element queries has improved the way I write CSS too. In this article I am going to explain why I love Element Queries and how you can get started easily.

August 2016

September 2015

jQuery - Does jQuery .remove() clear out loaded javascript when it is used to remove a script tag? - Stack Overflow

No. Once a script is loaded, the objects and functions it defines are kept in memory. Removing a script element does not remove the objects it defines. This is in contrast to CSS files, where removing the element does remove the styles it defines. That's because the new styles can easily be reflowed. Can you imagine how hard it would be to work out what a script tag created and how to remove it? EDIT: However, if you have a file that defines myFunction, then you add another script that redefines myFunction to something else, the new value will be kept. You can remove the old script tag if you want to keep the DOM clean, but that's all removing it does. EDIT2: The only real way to "clean up" functions that I can think of is to have a JS file that basically calls delete window.myFunction for every possible object and function your other script files may define. For obvious reasons, this is a really bad idea.

August 2015

May 2015

jQuery - Tuto - Use jQuery to extract data from HTML lists and tables | Encosia

(via)
Mapping the data within HTML unordered lists. Using .map() against an unordered list is one of the most straightforward examples to start with. Imagine you had this simple HTML markup: .map() like this:

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