Generators are yet another addition to the JS standard introduced in the ES6 edition of the language. Generators are a new addition to JavaScript, although they have been existing in other programming languages such as Python, PHP, and C#. What is a generator? Generators are… Read More »JavaScript generators
Apart from parameters being explicitly defined inside the function definition, there are two additional silent parameters getting passed down to the function itself. These silent parameters are called implicit parameters: this and arguments. They are not listed in the signature of any function but can… Read More »Using this and arguments
Arrow functions were an ES6 addition to the JavaScript standard. They were a pretty significant update to the base language, and the first update since ES5 to be standardized. The list of other ES6 features including enhanced object literals, new operators, and libraries can be… Read More »Arrow functions in JavaScript
We can use the internal workings of functions to remember previously computed values, thus improving the performance of code we write by a huge margin (this is an especially important thing to utilize during algorithm writing/coding interviews). Memoization Memoization is a technique that improves the… Read More »JavaScript memoization
If you didn’t know already, JavaScript functions are first-class objects. They can be treated like any other JavaScript Object data type. Functions can be referenced by variables, declared with literals, and even passed as function parameters. Functions serve an important role in JavaScript because they… Read More »Why are JavaScript functions first-class objects?
Another feature of the web is that applications have a functional response to user’s interaction, such as clicking, moving the mouse, typing on the keyboard, and using the scroll. Apart from creating the DOM, the browser is responsible for event handling during the page-building process.… Read More »Browser event handling
For the last part about parsing the HTML (and tokenization and DOM) click here. In this part, we will explain the way browsers execute JavaScript while building web pages. First thing first, every browser has an engine that is used to execute JavaScript code. Chrome… Read More »Executing JavaScript code inside the browser
In the last article, in case you missed it, we’ve written about the procedure of parsing the HTML inside the browser. I mentioned there that the browser will stop parsing the document if it comes across <script>…</script> or <script src=” “>…</script> tags. The browser stops… Read More »Async and defer inside the script tags
With this article, we will start a new series on this blog. We will try to explain and simplify how the browser builds a webpage. Specifically, we will explain how the process of browser parsing works. If we visit any webpage with the Developer Tools… Read More »Parsing the HTML inside the browser!
In the last two articles, we solved two exercises, one based on comparisons, and the other one on closures. Our third and final exercise from the book will be on the topic of prototypes. We picked these exercises up from Kyle Simpson’s You Don’t Know… Read More »JavaScript – Practicing Prototypes