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What's the $unwind operator in MongoDB?
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242
First off, welcome to MongoDB!
The thing to remember is that MongoDB employs an "NoSQL" appr...
Class does not implement its superclass's required members
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127
From an Apple employee on the Developer Forums:
"A way to declare to the compiler and the b...
System.currentTimeMillis vs System.nanoTime
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If you're just looking for extremely precise measurements of elapsed time, use System.nanoTime(...
Appending a line to a file only if it does not already exist
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Just keep it simple :)
grep + echo should suffice:
grep -qxF 'include "/configs/projectnam...
Composer killed while updating
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answered Dec 20 '13 at 8:29
AndreasAndreas
6,73122 gold badges2323 silver badges3636 bronze badges
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How to set a Django model field's default value to a function call / callable (e.g., a date relative
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waterproof
3,31522 gold badges2525 silver badges2727 bronze badges
answered Sep 29 '12 at 17:46
Ned BatchelderNed Bat...
schema builder laravel migrations unique on two columns
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The second param is to manually set the name of the unique index. Use an array as the first pa...
Is it better in C++ to pass by value or pass by constant reference?
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It used to be generally recommended best practice1 to use pass by const ref for all types, exc...
How to use knockout.js with ASP.NET MVC ViewModels?
...seId field is required." id="CourseId" name="CourseId" type="text" value="12" />
Why was document ready needed to make it work(see first edit for more information)
I do not understand yet why you need to use the ready event to serialize the model, but it seems that it is simply required (Not to ...