大约有 27,000 项符合查询结果（耗时：0.0469秒） [XML]
Print content of JavaScript object? [duplicate]
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This doesn't work for objects with circular reference chains - Chrome gives an error: TypeError: Converting curcular structure to JSON
– DavidJ
May 15 '13 at 12:57
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Copy folder structure (without files) from one location to another
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What does the -- mkdir's option?
– Bruce_Warrior
Aug 8 '16 at 8:58
10
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In what situations would AJAX long/short polling be preferred over HTML5 WebSockets?
...irty workaround to prevent creating connections for each request like AJAX does -- but long polling was created when WebSockets didn't exist. Now due to WebSockets,
long polling is going away.
WebRTC allows for peer-to-peer communication.
I recommend learning WebSockets.
Comparison:
of differe...
Is it smart to replace boost::thread and boost::mutex with c++11 equivalents?
...ad cancellation, C++11 threads do not
C++11 supports std::async, but Boost does not
Boost has a boost::shared_mutex for multiple-reader/single-writer locking. The analogous std::shared_timed_mutex is available only since C++14 (N3891), while std::shared_mutex is available only since C++17 (N4508).
C...
PHP Get all subdirectories of a given directory
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While a nice, simple approach, the accepted answer does not answer the question: getting sub-directories from the parent directory (aka siblings of current working directory). To do so it'd need to change working directory to the parent directory.
– rya...
Maven package/install without test (skip tests)
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Thanks a lot, I used to do it using -DskipTests but it does not work anymore, any idea why ?
– sam
Aug 3 '16 at 7:21
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Count occurrences of a char in a string using Bash
... by $char and print the number of resulting fields minus 1.
If your shell does not support the <<< operator, use echo:
echo "${string}" | awk -F"${char}" '{print NF-1}'
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improve t...
Git error on commit after merge - fatal: cannot do a partial commit during a merge
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What does Stage additional files mean?
– jcalfee314
Jan 6 '14 at 18:57
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Javascript reduce on array of objects
...t iteration
Iteration 2: a = 3, b = {x:2} returns NaN
A number literal 3 does not (typically) have a property called x so it's undefined and undefined + b.x returns NaN and NaN + <anything> is always NaN
Clarification: I prefer my method over the other top answer in this thread as I disagr...
Groovy: what's the purpose of “def” in “def x = 0”?
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assert this.binding.getVariable("x") == 1
Using the def keyword instead does not put the variable in the scripts bindings:
def y = 2
assert y == 2
try {
this.binding.getVariable("y")
} catch (groovy.lang.MissingPropertyException e) {
println "error caught"
}
Prints: "error caught"
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