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What is the difference between a “function” and a “procedure”?
... based on input.
A procedure is a set of command which can be executed in order.
In most programming languages, even functions can have a set of commands. Hence the difference is only in the returning a value part.
But if you like to keep a function clean, (just look at functional languages), yo...
How to “warm-up” Entity Framework? When does it get “cold”?
...o warm up those apart from: Doing dummy data reads at Application Start in order to warm things up, generate and validate the models.
– manishKungwani
Jul 4 '13 at 19:51
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How to allow only numeric (0-9) in HTML inputbox using jQuery?
...layout is. For example, on French keyboards, users have to press shift in order to type numbers. So this code will not work at all. So please go for validation instead of this keycode hack.
– MiniQuark
Dec 12 '12 at 14:18
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Visual Studio debugging “quick watch” tool and lambda expressions
... the following into the watch window
(Func<int>)(() => v2);
In order to properly execute this the debugger (or more appropriate the EE) would need to create a closure for variable v2. This is difficult but not impossible to do.
What really makes this a tough job for the EE though is ...
drag drop files into standard html file input
... dragover and dragenter events need to have 'preventDefault' called
// in order for the 'drop' event to register.
// See: https://developer.mozilla.org/en-US/docs/Web/Guide/HTML/Drag_operations#droptargets
dropContainer.ondragover = dropContainer.ondragenter = function(evt) {
evt.preventDefau...
What is the second parameter of NSLocalizedString()?
...ne who is adding strings for your app in another language needs context in order to know what translation to apply. The first parameter just specifies the key in the localization strings file, the strings file is what actually stores the text to display in the UI.
– Rob Keniger...
Difference between reduce and foldLeft/fold in functional programming (particularly Scala and Scala
... the collection, and it's commutativity that makes cumulating easy because order is not important (so it doesn't matter which order to aggregate each of the results from each of the chunks). Strictly speaking commutativity is not necessary for parallelization, for example distributed sorting algorit...
Does the join order matter in SQL?
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For INNER joins, no, the order doesn't matter. The queries will return same results, as long as you change your selects from SELECT * to SELECT a.*, b.*, c.*.
For (LEFT, RIGHT or FULL) OUTER joins, yes, the order matters - and (updated) things are...
What's the point of NSAssert, actually?
...g a method which calculates the sum of two greater than zero integers. In order to make sure the method was always used as intended you would probably put an assert which tests that condition.
Short answer: They enforce that your code is used only as intended.
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MySQL: Order by field size/length
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SELECT * FROM TEST ORDER BY LENGTH(description) DESC;
The LENGTH function gives the length of string in bytes. If you want to count (multi-byte) characters, use the CHAR_LENGTH function instead:
SELECT * FROM TEST ORDER BY CHAR_LENGTH(descri...
