In this example, we’ve removed the name of the function, which wasadd, and turned it into an anonymous function. A named function expression could be used to aid in debugging, but it is usually omitted. Arrow
Unlike other programming languages,JavaScript functions are objects. In other words, it is an instance of theFunctiontype. Consequently, it has properties and methods like other objects. Also, the name of a function is merely a pointer that points to the function object. Let's discuss in the ...
Thereturnkeyword allows you to define an explicit value to be returned to the caller of your function. The code placed after thereturnkeyword is the value that will be returned – in the above example, the value returned is the product ofnum1andnum2. Every function returns something, even ...
Adata typeis a classification of data that tells the compiler or interpreter how the programmer wants to use the data. The values define a specific kind of data item it can take, the programming language it uses, or the operations that can perform on it. Moreover, different data items can...
Alternatively, assign the property to a window because, in JavaScript, you can define global variables inside a function using the window object. The window object is a global object in JavaScript that represents the current window or tab in the web browser.:Javascript global variable...
thishas a number of other interesting aspects in JavaScript. Since version 6, for example, JavaScript has supported another way to define functions: letobj={f:()=>{returnthis;}} With this “fat arrow” syntax,thisis not bound to the function. It acquires its value from the surrounding con...
JavaScript Design patterns - The Constructor Pattern Introduction In this article, I would like to explain how to use Object.defineProperty() and Object.defineProperties() methods. These two methods define new or modify existing properties directly on an object, returning the object (Visit MDN, whi...
Now, JavaScript has its own built-in way to make API requests. This is the Fetch API, a new standard to make server requests with Promises, but which also includes additional features. Promises section Step 1 — Getting Started with Fetch API Syntax ...
We define a function that we want to debounce. We set the function to be executed after a certain time. This specific time is an estimated time that the user "relaxes" his fingers from clicking a button or typing in a text field. If the user still does something within that time, then...
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