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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...
Difference between acceptance test and functional test?
... for maximum code coverage. We use any test environment we can grab at the time, it doesn't have to be "production" caliber, so long as it's usable.
acceptance testing: This is a validation activity; did we build the right thing? Is this what the customer really needs?
This is usually done in coo...
How to Turn Off Showing Whitespace Characters in Visual Studio IDE
... @Vintharas: It exists because people like me keep it on ALL THE TIME, because we like always being aware of what we're inserting or how we're changing the file. Gives us more casual control over our environment. There are also cases where it's actually critical, such as inside strings t...
Controlling number of decimal digits in print output in R
...mal_length)
## -876.54321
We can change the decimal_length based on each time query, so it can satisfy different decimal printing requirement.
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How can I get the ID of an element using jQuery?
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It amazes me each time that jQuery does not have a shortcut for this like $('#test').id().
– awe
Apr 2 '14 at 16:33
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Open files in 'rt' and 'wt' modes
Several times here on SO I've seen people using rt and wt modes for reading and writing files.
4 Answers
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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...
How to avoid mysql 'Deadlock found when trying to get lock; try restarting transaction'
...key(2);
connection 2: locks key(2), locks key(1);
If both run at the same time, connection 1 will lock key(1), connection 2 will lock key(2) and each connection will wait for the other to release the key -> deadlock.
Now, if you changed your queries such that the connections would lock the keys ...
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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Cache Invalidation — Is there a General Solution?
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What you are talking about is lifetime dependency chaining, that one thing is dependent on another which can be modified outside of it's control.
If you have an idempotent function from a, b to c where, if a and b are the same then c is the same but the cost...