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    <p>I was just browsing through unanswered questions, and I'm not sure if this will help you at all but it may help somebody who stumbles upon this question.</p> <p>Using the <code>call()</code> method on a function object allows you to override the <em><code>this</code></em> object to be referenced by the function. You have demonstrated the expected results in your own code block.</p> <p>It can be noted that the <code>apply()</code> method performs pretty much the same functionality of <code>call()</code> except for the expected argument formats.</p> <p><code>call()</code> expects arguments in a comma separated format while <code>apply()</code> expects them in an array. With both, the first argument is the object that will be overriding <em><code>this</code></em>.</p> <h2>ECMA Spec</h2> <p>The <a href="http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-262.pdf" rel="nofollow">ECMA specification (pdf warning)</a> has this to say about <code>call()</code> showing its use in changing the execution context for a specific function:</p> <blockquote> <p>13.2.1 [[Call]]</p> <p>When the [[Call]] internal method for a Function object F is called with a this value and >a list of arguments, the following steps are taken:</p> <ol> <li>Let funcCtx be the result of establishing a new execution context for function code using the value of F's [[FormalParameters]] internal property, the passed arguments List args, and the this value as described in 10.4.3.</li> <li>Let result be the result of evaluating the FunctionBody that is the value of F's [[Code]] internal property. If F does not have a [[Code]] internal property or if its value is an empty FunctionBody, then result is (normal, undefined, empty).</li> <li>Exit the execution context funcCtx, restoring the previous execution context.</li> <li>If result.type is throw then throw result.value.</li> <li>If result.type is return then return result.value.</li> <li>Otherwise result.type must be normal. Return undefined.</li> </ol> </blockquote>
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    1. POWhat is the use of function.call method?
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    1. USAnthony Clark
    1. USAnthony Clark
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    1. COThe textbook answer is the only good answer here. A useful scenario surely exists, but why confine the language structure to one example?
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      1. USSeth Battin
 

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