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val() vs. text() for textarea
...uery, and wondering if I should use val() or text() (or another method) to read and update the content of a textarea.
2 Ans...
Why does my application spend 24% of its life doing a null check?
... for instructions. Small, allowing it to be close to the execution engine. Reading bytes from the L1 cache typically takes 2 or 3 CPU cycles. Next up is the L2 cache, bigger and slower. Upscale processors also have an L3 cache, bigger and slower yet. As process technology improves, those buffers tak...
How to loop through files matching wildcard in batch file
...le letter - cryptic error messages will appear if you try to use something readable and meaningful.
– Bruce Dawson
Jan 29 '17 at 5:39
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Check existence of directory and create if doesn't exist
...le.path(mainDir, subDir))
dir.create() does not crash if the directory already exists, it just prints out a warning. So if you can live with seeing warnings, there is no problem with just doing this:
dir.create(file.path(mainDir, subDir))
setwd(file.path(mainDir, subDir))
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Fastest way to check if a file exist using standard C++/C++11/C?
...pects of a high performance application require optimization. For example, reading the command line or a config file can be complex and may not require speed, though the application itself may require the performance advantages of C++. Avoiding Boost in such cases constitutes wheel reinvention, high...
Resolving MSB3247 - Found conflicts between different versions of the same dependent assembly
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You just saved me some hours of work! It did help to read through the detailed output, but once I did it was easy to again verify with your tool.
– Norman H
Sep 10 '15 at 20:27
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Why do browsers match CSS selectors from right to left?
...me data at http://groups.google.com/group/mozilla.dev.tech.layout/browse_thread/thread/b185e455a0b3562a/7db34de545c17665 (though the notation is confusing), but the upshot is that for Gmail in particular two years ago, for 70% of the (rule, element) pairs you could decide that the rule does not matc...
Define global variable in a JavaScript function
...). As I mentioned, they end up being properties of window, and window is already plenty crowded enough what with all elements with an id (and many with just a name) being dumped in it (and regardless that upcoming specification, IE dumps just about anything with a name on there).
Instead, wrap your...
How to get key names from JSON using jq
...;(jq -r 'keys[]' ms.json)
On older BASH you can do:
arr=()
while IFS='' read -r line; do
arr+=("$line")
done < <(jq 'keys[]' ms.json)
Then print it:
printf "%s\n" ${arr[@]}
"Archiver-Version"
"Build-Id"
"Build-Jdk"
"Build-Number"
"Build-Tag"
"Built-By"
"Created-By"
"Implementation-Ti...
Visual Studio 2013 doesn't discover unit tests
...our solution is in a protected drive that you need administrator access to read/write, sometimes only a portion of the tests come up. Definitely run VS as administrator in that case.
If your solution is 64 bit, make sure that Test > Test Settings > Default Processor Architecture is set to x64....