// calling greet() function by passing two argumentsletresult = greet.apply(personName, ["Good morning","How are you?"]); console.log(result);// Output:// Taylor, Good morning. How are you? Run Code apply() Syntax The syntax of theapply()method is: func.apply(thisArg, argsArray) ...
Function Declarations Earlier in this tutorial, you learned that functions aredeclaredwith the following syntax: functionfunctionName(parameters) { code to be executed } Declared functions are not executed immediately. They are "saved for later use", and will be executed later, when they are ...
// calling sum() functionvarresult = sum.call(this,5,10); console.log(result);//Output:// 15 Run Code call() Syntax The syntax of thecall()method is: func.call(thisArg, arg1, ... argN) Here,funcis a function. call() Parameters Thecall()method can taketwoparameters: thisArg- The...
// Function to compute the product of p1 and p2 functionmyFunction(p1, p2) { returnp1 * p2; } Try it Yourself » JavaScript Function Syntax A JavaScript function is defined with thefunctionkeyword, followed by aname, followed by parentheses(). ...
Arrow functions allows a short syntax for writing function expressions. You don't need thefunctionkeyword, thereturnkeyword, and thecurly brackets. Example // ES5 varx =function(x, y) { returnx * y; } // ES6 constx = (x, y) => x * y; ...
[JavaScript] — Simplified function syntax — Compared to some (primarily functional) languages, function definition in JavaScript looks rather cumbersome: ```javascript const square = (x) => { return x ** 2; }; ```...
The shift() function has a similar purpose like pop(), except that it works on the first element in an array. Syntax and parameters Here is the syntax for the method: Syntax: array.pop() For the JavaScript pop() method, we don’t have any parameters to consider. But what is the re...
function world(a) { log(this, a); } bar.call(foo); function hello() { world.apply(foo, arguments); }We could call it a day at that, but I don’t want to devalue the power that this syntax affords us. Let’s explore the ramifications of this syntax further.Iteration...
An onclick event calls a function Events explained JavaScript Strings Strings can be written with single or double quotes. Show some string examples Backslash before quotes accepts quotes as quotes. Find the length of a string You can break text string with a backslash. ...
Used to call and/or provide the context (object) for a function that is dependant on an object. Often, functions are assigned to objects and access object members using the 'this' keyword.