June 2016
Intermediate to advanced
290 pages
6h 45m
English
Content preview from Mastering JavaScript Design Patterns - Second EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Aspect oriented programming
Modularity of software is a great feature, the majority of this book has been about modularity and its advantages. However, there are some features of software that span the entire system. Security is a great example of this.
We would like to have similar security code in all the modules of the application to check that people are, in fact, authorized to perform some action. So if we have a function of the sort:
var GoldTransfer = (function () { function GoldTransfer() { } GoldTransfer.prototype.SendPaymentOfGold = function (amountOfGold, destination) { var user = Security.GetCurrentUser(); if (Security.IsAuthorized(user, "SendPaymentOfGold")) { //send actual payment } else { return { success: 0, message: "Unauthorized" ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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