Basic call () Syntax The call () method is used to call a function with an object as an argument. The call () method takes this as the first argument. Additional arguments are passed as a comma-separated list.

Jul 10, 2025 · Normally, when calling a function, the value of this inside the function is the object that the function was accessed on. With call(), you can assign an arbitrary value as this when calling an …

Jul 11, 2025 · It can be used to invoke (call) a method with an owner object as an argument (parameter). This allows borrowing methods from other objects, executing them within a different context, …

Summary Use the function keyword to declare a function. Use the functionName() to call a function. All functions implicitly return undefined if they don’t explicitly return a value. Use the return statement to …

The JavaScript Function call () method calls a function with a given this value and arguments provided individually. The call () method calls a function by passing this and specified values as arguments.

Learn how to effectively call functions in JavaScript, including syntax, examples, and best practices for function invocation.

Oct 13, 2025 · Learn how to define and call functions in JavaScript with simple examples. Understand parameters, return values, and function invocation step-by-step.

In JavaScript all functions are object methods. If a function is not a method of a JavaScript object, it is a function of the global object (see previous chapter).

A JavaScript function runs when it is called. To call a function, write the name followed by parentheses like name (). The code inside a function is NOT executed when the function is defined. The code …

Jul 8, 2025 · Defining a function does not execute it. Defining it names the function and specifies what to do when the function is called. Calling the function actually performs the specified actions with the …