The Best Way to Learn JavaScript Learning something new is scary. For me, the biggest issue with picking up a new skill is that I don’t know what I don’t know. Given that, it’s often useful to find a plan for learning whatever you’re interested in. That’s what this post is: your blueprint, your roadmap, your plan of action for learning JavaScript! You don’t have to worry about finding the best resources, sorting out the bad ones, and figuring out what to learn next. It’s all here. JavaScript is the language of the browser. Before you actually begin learning JavaScript, take a minute to understand what it is and does. JavaScript is not jQuery, Flash, or Java. JavaScript is the language of the browser (not exclusively these days, though). One more note: you’ve heard about jQuery, which is probably the most widely-used JavaScript library. You might even have heard someone say that you should start with jQuery (or another library) and learn JavaScript after. A handful of good introductions, if I may: So, what can you build?
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Shoot to kill; CSS selector intent – CSS Wizardry – Web Performance Optimisation 17 July, 2012 Written by Harry Roberts on CSS Wizardry. It’s worth noting that selector intent is something I completely made up at some point today; if you think there’s a better name then please let me know! Let’s take a closer look at the .header ul{} example. Let’s imagine that ul is indeed the main navigation for our website. It lives in the header, as you might expect, and is currently the only ul in there; .header ul{} is fine, right? Your selector’s intent must match that of your reason for styling something; ask yourself ‘am I selecting this because it’s a ul inside of .header or because it is my site’s main nav?’. It’s all about the key selector… What determines the impact of a selector is its key selector. As a general rule you should try and avoid any key selector that is a type selector (basically an element, like ul or span or whatever) or a base object (e.g. .nav or .media). Let’s keep looking at the .header ul{} example. <div class=header><ul class=nav> [links] </ul></div>
Code School - Try jQuery Best resources to learn JavaScript The Front End Developer's Dilemma Learn Development at Frontend Masters Hello, my name is Geoff and I am a web designer. At least, that’s what I tell people I do for a living, because it’s what most people understand. The truth is, I am a front end developer. Or do I? I get a sense that we likely have different definitions for what it means to be a front end developer. In other words, some of you may not consider me a developer at all, or a poser at best. I found myself recalling those hurt feelings recently when Lara Schenck shared her story of missing out on a UX job because she wasn’t familiar with the programming test FizzBuzz. #My Tale of Being a Non-Unicorn I design for the web, and often code those designs into the stuff that people interact with on the front end. I didn’t always write code. But over time, I found myself not only asking those questions, but trying to answer them for myself because it became a necessity. Am I excellent at all of the above? #But You’re Still Not a Developer! #Where Do We Go From Here?
David Shariff From my previous post, we now know that every function has an associated execution context that contains a variable object [VO], which is composed of all the variables, functions and parameters defined inside that given local function. The scope chain property of each execution context is simply a collection of the current context's [VO] + all parent execution context's [VO]. Scope = VO + All Parent VOs Eg: scopeChain = [ [VO] + [VO1] + [VO2] + [VO n+1] ]; Determining a Scope Chain’s Variable Objects [VO]s We now know that the first [VO] of the scope chain belongs to the current execution context, and we can find the remaining parent [VO]s by looking at the parent context’s scope chain: function one() { two(); function two() { three(); function three() { alert('I am at function three'); } } } one(); The example is straight forward, starting from the global context we call one(), one() calls two(), which in turn calls three(), thus alerting that it is at function three. Lexical Scope Summary
Javascript Tutorial In this lesson, we'll learn about the core functionality of the JavaScript language. Lesson Goals To work with the HTML DOM.To follow JavaScript syntax rules.To write JavaScript inline.To write JavaScript in script blocks.To create and link to external JavaScript files.To work with JavaScript objects, methods, and properties.To reference HTML elements with JavaScript.To use event handlers. In this course, we refer to the language we are learning as JavaScript, which is what it is usually called. However, JavaScript was invented by Netscape Communications and is now owned by Oracle Corporation. The HTML Document Object Model (DOM) is the browser's view of an HTML page as an object hierarchy, starting with the browser window itself and moving deeper into the page, including all of the elements on the page and their attributes. As shown, the top-level object is window. Basic Rules JavaScript statements end with semi-colons. Dot Notation A document can have multiple form elements as children.
Front-end Developer Handbook 2019 - Learn the entire JavaScript, CSS and HTML development practice! This is a guide that everyone can use to learn about the practice of front-end development. It broadly outlines and discusses the practice of front-end engineering: how to learn it and what tools are used when practicing it in 2019. It is specifically written with the intention of being a professional resource for potential and currently practicing front-end developers to equip themselves with learning materials and development tools. The content of the handbook favors web technologies (HTML, CSS, DOM, and JavaScript) and those solutions that are directly built on top of these open technologies. The book should not be considered a comprehensive outline of all resources available to a front-end developer. The intention is to release an update to the content yearly. Chapter 0 provides a lite recap of the year in front-end development and what may be to come. Chapter 1. This chapter provides a baseline explanation for front-end development and the front-end developer discipline. Webviews