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Load and execution sequence of a web page?

...ly rendered and requests for all assets in the page are either resolved or time out does JavaScript execute from the onload event. IE7, and I am not sure about IE8, does not time out assets quickly if an HTTP response is not received from the asset request. This means an asset requested by JavaScr...
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A migration to add unique constraint to a combination of columns

...it doesn't scale. Two servers could run the same data through at the same time (like a double tap on an api heavy app) I have two identical records in my DB right now and the model has the validation.. – baash05 Mar 17 '15 at 1:26 ...
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Finding JavaScript memory leaks with Chrome

...://jsfiddle.net/4QhR2/show/ I was never able to figure out how to use the Timeline and Profiler to track down memory leaks, until I read the following documentation. After reading the section entitled 'Object allocation tracker' I was able to use the 'Record Heap Allocations' tool, and track some s...
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Why use prefixes on member variables in C++ classes

...ad and unfair association with System Hungarian), and this is a very handy timesaving and bug-reducing approach. I use: m for members c for constants/readonlys p for pointer (and pp for pointer to pointer) v for volatile s for static i for indexes and iterators e for events Where I wish to make...
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Adjusting the Xcode iPhone simulator scale and size [duplicate]

...reens(MacBook Pro 15-Inch), I can't scale it more than the screen size sometimes if I want to see the UI elements more clearly. It's a kind of disadvantage in Xcode 9. – Ashok Sep 21 '17 at 11:03 ...
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How should I unit test threaded code?

...r multithreading that avoids threads running through instances at the same time. The simplest is to make all your objects immutable. Of course, that's not usually possible. So you have to identify those places in your design where threads interact with the same instance and reduce the number of t...
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How to import local packages without gopath

... Such a banality but it took me an embarrassing amount of time to find the answer and your post was the most legible and useful. Thank you! – Harold Cavendish Jul 14 at 19:05 ...
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Is there a range class in C++11 for use with range based for loops?

...ry, it has one major disadvantage : that you cannot create the range at runtime, as you need to know the template arguments at compile time itself. //your version auto x = range<m,n>(); //m and n must be known at compile time //my version auto x = range(m,n); //m and n may be known at runti...
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From ND to 1D arrays

... a.ravel() looks to be around three times as fast as a.reshape(-1). a.flatten() is way slower, as it needs to make a copy. – BallpointBen Aug 29 '18 at 22:52 ...
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Querying DynamoDB by date

...o it is not ideal. If you need to perform an indexed lookup of records by time across multiple primary keys, DynamoDB might not be the ideal service for you to use, or you might need to utilize a separate table (either in DynamoDB or a relational store) to store item metadata that you can perform a...