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POPrototypal inheritance and the value of 'this'
 

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    <p>I'm building an app with several 'modules'. Each module requires a similar base set of functionality, so I have created a base module that each module will inherit from via prototypal inheritance. Some of the function names on the base module are quite long, and since these functions are used often, I would like to assign shorter names within each module, but this causes issues with the value of 'this' setting it equal to DOMWindow. </p> <p>Please see the code below:</p> <pre><code>var SAMPLEAPP = SAMPLEAPP || {}; //This is a base module that I want all other modules to inherit from SAMPLEAPP.Module = function(){ }; SAMPLEAPP.Module.prototype.someLongFunctionName = function(){ console.log(this); }; //This is a module that inherits from the base module SAMPLEAPP.RouterModule= function(){ var shortName = this.someLongFunctionName; //This correctly logs 'SAMPLEAPP.RouterModule', but I would rather not type //out this long function name each time I need to use the function this.someLongFunctionName(); //However, this code logs 'DOMWindow' when I would expect the value of 'this' //to be the same as the direct call to this.someLongFunctionName shortName(); }; SAMPLEAPP.RouterModule.prototype = new SAMPLEAPP.Module(); new SAMPLEAPP.RouterModule(); </code></pre> <p>My Question: How can I modify the code so that calling shortName() logs SAMPLEAPP.RouterModule? If possible, I would rather change the way the modules are defined than the actual call to shortName (i.e. shortname.call(this), defeats the purpose of creating an alias for someLongFunctionName)</p>
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