Functions in JavaScript have access to two inbuilt methods:applyandcall. func.apply(thisArg,argArray)func.call(thisArg,arg1,arg2,...) They allow us invoke a function and explicitly tie it to an object. Any object supplied to thethisArgparameter becomes the function context and what is referenc...
In JavaScript, there isn't a distinct data structure referred to as an "associative array." Instead, developers often use objects to achieve similar functionality. Key-value pairs Objects in JavaScript are collections of key-value pairs, where the keys (also called property names) are strings ...
Arrays condense this information, making the code more organized and easier to understand. How is an Array Initialized? An array can be initialized in several programming languages. I’ll provide examples in three commonly used languages: C++, Python, and JavaScript. C++ In C++, you can ...
Learn about the !! (not not) operator in JavaScript with examples. Submitted byPratishtha Saxena, on May 16, 2022 JavaScript's double not operatoris basically double use of (!) operator. This is alogical not operator. (!!) operator converts non-Boolean to Boolean. As you know,!operator ...
Here's the complete guide on one of the JavaScript object 'This' keyword and how to implement it. Just keep reading to know more.
The difference between using Array.of() and the Array constructor is how they both handle a single integer argument: const x = Array.of(3); const y = new Array(3); console.log(x); // output: [3] console.log(
The only difference is that ‘call’ expects a discrete number of parameters while ‘apply’ can be passed an array of parameters. That’s ‘this’ in a nutshell! However, there are several gotchas which may catch you out. We’ll discuss those in my next post… Frequently Asked Questions...
Master Promise.all in JavaScript: Unleash the power of asynchronous programming! Boost efficiency with our expert tips and tricks. Click to learn more!
JavaScript is the most in-demand programming language for developer jobs and one of the most versatile languages for full-stack development. Here's what you need to know about JavaScript.
The "=>" symbol is used in JavaScript to define arrow functions. An arrow function is a shorthand for writing anonymous functions (functions without a name) in JavaScript. Arrow functions provide a more concise syntax compared to regular function expressions and do not have their own "this", ...