Page Comparison

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Takes a parameters object and a required keys array and compares the two. If any keys are missing from the array, then an error is logged and the error screen is shown (app.showErrors).

Basic Example: 

var app = require('app');
app.init();
app.checkRequired(parameters);

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Error screen shown after failing checkRequired
The required parameter ['test'] was not a key in the 'p' object passed in.

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