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Refresh image with a new one at the same url
..., or need to be refreshed intermittently by the client without server-side script involvement, but where you still want the advantage of caching. For example, polling a live webcam that updates an image irregularly every few minutes. Alternatively, use instead of (1) or (2) if your server doesn't ...
How to sort an array in Bash
...nsure we don't cause trouble with anything that relies on IFS later in our script. (Otherwise we'd need to remember that we've switched things around--something that might be impractical for complex scripts.)
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What do parentheses surrounding an object/function/class declaration mean? [duplicate]
...ake a simple example:
for(var i=0; i<5; i++) {
setTimeout(function(){alert(i)}, 10);
}
The "expected" result could be the numbers from zero to four, but you get four instances of fives instead. This happens because the anonymous function in setTimeout and the for loop are using the very same...
How to detect if a script is being sourced
I have a script where I do not want it to call exit if it's being sourced.
17 Answers
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What does appending “?v=1” to CSS and Javascript URLs in link and script tags do?
...m/ ) and noticed the use of "?v=1" in URLs when referring to CSS and Javascript files.
8 Answers
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Can I change all my http:// links to just //?
...ware of which one has the problem or how popular it is. For hosting a JavaScript file, that's not a big problem since RSS readers typically ignore JavaScript content anyway. However, it could be an issue if you're using these URLs for media like images inside content that needs to be syndicated vi...
How to use timeit module
...)
y = range(100)
and times
sum(x)
min(y)
If you want to have longer scripts you might be tempted to move to timeit inside a Python script. I suggest avoiding that because the analysis and timing is simply better on the command line. Instead, I tend to make shell scripts:
SETUP="
... # lot...
static const vs #define
...are is needed to make sure client code is recompiled (e.g. the Makefile or script supplying the definition should be listed as a dependency)
My personal opinion:
As a general rule, I use consts and consider them the most professional option for general usage (though the others have a simplici...
How do I programmatically determine if there are uncommitted changes?
...n see "How to check if a command succeeded?" if you are using it in a bash script:
git diff-index --quiet HEAD -- || echo "untracked"; // do something about it
Note: as commented by Anthony Sottile
git diff-index HEAD ... will fail on a branch which has no commits (such as a newly initialized repo...
Event binding on dynamically created elements?
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Any way to accomplish this with pure javascript/vanilla js?
– Ram Patra
Nov 12 '14 at 12:33
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