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Articles tagged with #frontend-development
The Browser and Its JavaScript Engine The browser has a built-in JavaScript engine responsible for executing JavaScript code. The Call Stack always resides inside this engine and handles synchronous code execution. However, the browser is much more p...
Function Statement/Declaration Function statement and function declaration both are the same: function a() { console.log("hello a"); } Function Expression A function expression is when a function is assigned to a variable: var b = function() { ...
Scope: Scope refers to the context or environment in which a variable is declared and can be accessed. A variable’s scope defines where it can be used and where it is accessible. There are two type of scope : Local scope and 2. Global scope For exa...
In JavaScript, hoisting is a behavior where variable and function declarations are moved to the top of their containing scope during the execution phase. This allows you to access variables and functions even before they are declared in the code. Hoi...
Everything in JavaScript happens inside an execution context. An execution context is like a big box that contains all the types of code in JavaScript. The execution context is divided into two parts: Memory Code In the memory part, JavaScript st...
Block Referring to is grouping multiple statements together inside a block (curly braces {}) in JavaScript. This is often done when JavaScript expects a single statement but you want to execute multiple statements in that context Example: if (true) {...