大约有 40,000 项符合查询结果（耗时：0.0340秒） [XML]
Should CSS always preceed Javascript?
... better." So, you're right; it's high time we do some actual research!
I set up my own test harness in Node (code below). Basically, I:
Made sure there was no HTTP caching so the browser would have to do a full download each time a page is loaded.
To simulate reality, I included jQuery and the ...
Git command to display HEAD commit id?
What command can I use to print out the commit id of HEAD?
9 Answers
9
...
Getting All Variables In Scope
...etermined by the "scope chain", which is not accessible programmatically.
For detail (quite a lot of it), check out the ECMAScript (JavaScript) specification. Here's a link to the official page where you can download the canonical spec (a PDF), and here's one to the official, linkable HTML version....
Why does C++11's lambda require “mutable” keyword for capture-by-value, by default?
...
It requires mutable because by default, a function object should produce the same result every time it's called. This is the difference between an object orientated function and a function using a global variable, effectively.
...
How do JavaScript closures work?
...UND_COLOR
}
$('button').addEventListener('click', onClick)
<button>Set background color</button>
Modularization
In the following example, all the implementation details are hidden inside an immediately executed function expression. The functions tick and toString close over the p...
How to calculate time elapsed in bash script?
... seconds since the assignment plus the assigned value.
Thus, you can just set SECONDS to 0 before starting the timed event, simply read SECONDS after the event, and do the time arithmetic before displaying.
SECONDS=0
# do some work
duration=$SECONDS
echo "$(($duration / 60)) minutes and $(($durati...
How can I use numpy.correlate to do autocorrelation?
I need to do auto-correlation of a set of numbers, which as I understand it is just the correlation of the set with itself.
...
how to mysqldump remote db from local machine
...nects by socket rather then by port)
edit: well, to elaborate: if host is set to localhost, a configured (or default) --socket option is assumed. See the manual for which option files are sought / used. Under Windows, this can be a named pipe.
...
Guards vs. if-then-else vs. cases in Haskell
... editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
...
How to convert floats to human-readable fractions?
Let's say we have 0.33 , we need to output 1/3 .
If we have 0.4 , we need to output 2/5 .
26 Answers
...