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In Javascript/jQuery what does (e) mean?

... (functions), much like objects in other languages. The handle, the 'e' inside the little (e) thing, is like a variable that allows you to interact with the object (and I use the term variable VERY loosely). Consider the following jQuery examples: $("#someLink").on("click", function(e){ // My pref...
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Getting “A potentially dangerous Request.Path value was detected from the client (&)”

...ngs in config file <system.web> <httpRuntime requestPathInvalidCharacters="" requestValidationMode="2.0" /> <pages validateRequest="false" /> </system.web> I would avoid using characters like '&' in URL path replacing them with underscores. ...
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What's the difference between ES6 Map and WeakMap?

...s you see, after removing k1 key from the memory we can still access it inside the map. At the same time removing k2 key of WeakMap removes it from wm as well by reference. That's why WeakMap hasn't enumerable methods like forEach, because there is no such thing as list of WeakMap keys, they are ju...
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Entity Framework 4 - AddObject vs Attach

... is used to update (or delete) the appropriate row by finding its matching ID in the db table. Furthermore, using the Attach method, you can define relationships between entities that already exist in the ObjectContext but that have not been connected automatically. Basically the main purpose of A...
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Iterating through a JSON object

...rate over something else, you'll have to iterate over something else. You didn't say what you wanted to iterate over. A Python tutorial would be a good place to find out what you can iterate over, and what it would do. – Thomas Wouters Apr 28 '10 at 23:42 ...
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When should I use UNSIGNED and SIGNED INT in MySQL?

...d ranges from about -n/2 to n/2. In this case, you have an AUTO_INCREMENT ID column, so you would not have negatives. Thus, use UNSIGNED. If you do not use UNSIGNED for the AUTO_INCREMENT column, your maximum possible value will be half as high (and the negative half of the value range would go unu...
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How to install Android SDK Build Tools on the command line?

I want to setup the Android dev environment from command line, and encounter the following issue: 19 Answers ...
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How can I reorder my divs using only CSS?

...hat order in the HTML? Both div s contain data that varies in height and width. 24 Answers ...
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Fragments onResume from back stack

I'm using the compatibility package to use Fragments with Android 2.2. When using fragments, and adding transitions between them to the backstack, I'd like to achieve the same behavior of onResume of an activity, i.e., whenever a fragment is brought to "foreground" (visible to the user) after popin...
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JavaScript private methods

... You can do it, but the downside is that it can't be part of the prototype: function Restaurant() { var myPrivateVar; var private_stuff = function() { // Only visible inside Restaurant() myPrivateVar = "I can set this here!"; } ...