call-method-function-javascript.md

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call Method (Function) (JavaScript) | Microsoft Docs		01/18/2017	windows-client-threshold			devlang-javascript		language-reference	call	JavaScript TypeScript DHTML	call method	fa356dec-48e6-4f75-8bf3-c1814a76818f	10	mikejo5000	mikejo	ghogen

call Method (Function) (JavaScript)

Calls a method of an object, substituting another object for the current object.

Syntax

call([thisObj[, arg1[, arg2[,  [, argN]]]]])  

Parameters

thisObj
Optional. The object to be used as the current object.

arg1, arg2, , argN
Optional. A list of arguments to be passed to the method.

Remarks

The call method is used to call a method on behalf of another object. It allows you to change the this object of a function from the original context to the new object specified by thisObj.

If thisObj is not supplied, the global object is used as thisObj.

Example

The following code shows how to use the call method.

function callMe(arg1, arg2){  
    var s = "";  
  
    s += "this value: " + this;  
    s += "<br />";  
    for (i in callMe.arguments) {  
        s += "arguments: " + callMe.arguments[i];  
        s += "<br />";  
    }  
    return s;  
}  
  
document.write("Original function: <br/>");  
document.write(callMe(1, 2));  
document.write("<br/>");  
  
document.write("Function called with call: <br/>");  
document.write(callMe.call(3, 4, 5));  
  
// Output:   
// Original function:   
// this value: [object Window]  
// arguments: 1  
// arguments: 2  
  
// Function called with call:   
// this value: 3  
// arguments: 4  
// arguments: 5  
  

Requirements

[!INCLUDEjsv55]

See Also

Function Object
apply Method (Function)