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JavaScript error handling may not be glamorous, however, it is perhaps one of the most important aspects of web development. If you have ever sat staring at a blank white screen waiting for an app to load after deployment; or sat watching a user struggle to complete a task because a single failed API request
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Writing code for the web prior to 2015 using JavaScript likely involved a great deal of struggle. Prior to the release of JavaScript ES6 features (a major update), many developers were forced to battle “var hoisting” issues, concatenate strings with an unending number of “+” signs, and write long and cumbersome function expressions which cluttered
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Javascript local storage is One of those hidden gems of the browser that really helps bring the modern web application to life in terms of being able to personalize and offer a smoother overall experience. If you’ve ever returned to a website that had saved your preferences (like switching between light/dark modes), or if you’ve
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JavaScript Fetch API is the modern standard for creating network Requests inside browsers. Have you ever written confusing xmlhttprequest code with nested callback routines? Then i’m sure you were aware of why the programming community cheered when fetch finally came around. Fetch isn’t just replacing the older Way; it changes entirely how we think about
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Form Validation in JavaScript: How to Protect Your Apps From Bad Data Protecting your application from incorrect data prior to reaching the server is called learning JavaScript form validation. Any form that allows anything to be entered is a form that will fail. You may have completed a form that stated “Email is required” or
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Making learning DOM manipulation basic skills turn a static HTML page into a living and interactive experience. DOM manipulation basics is used to allow javascript to communicate with a static HTML page. Most people have experienced websites that update dynamically, a new tweet appears; a form error pops-up; a light/dark theme toggle changes the overall
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Objects are the second major form of built-in data structure in JavaScript. As explained previously, Arrays were for lists and objects are for describing things with named attributes. Think of an object as an entity in the real world that has several characteristics. A car has a color, a model, a year and mileage. A
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Learning about the JavaScript array methods to manipulate data is crucial to producing clean, readable, and concise code when working with lists. Manual loops and conditions can be used to accomplish data manipulation, however many developers would rather rely on pre-built JavaScript array methods to make the process of manipulating the data much easier. In
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Learning how to create JavaScript arrow functions are an incredibly important skill to learn in order to write modern, readable and maintainable code. In 2015 ECMAScript introduced arrow functions. These were designed to provide a shorter way to define functions while at the same time providing a solution to two long standing issues of “this”
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Making your code able to handle different circumstances is the essence of the JavaScript conditional statements. JavaScript conditional statements are the engines of logic in your application that allow you to tell your code what to do depending on the state of your data. Variables are used to hold data, operators to process data, but
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