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How to skip over an element in .map()?
...;
}
return result;
}, []);
In that version, the code in the .filter() from the first sample is part of the .reduce() callback. The image source is only pushed onto the result array in the case where the filter operation would have kept it.
update — This question gets a lot of attention, and I...
Can I restore deleted files (undo a `git clean -fdx`)?
...at tip by @Usman. With Eclipse, I could get my file back with the "Restore from Local History..." option: i.imgur.com/XWNLOk5.gifv
– brandizzi
Jun 10 '16 at 13:28
1
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“Eliminate render-blocking CSS in above-the-fold content”
...ake worse than better for 'normal' websites.
And not everything that comes from Google is the "holy grail" just because it comes from Google. And they themselves are not a good role model if you have a look at their HTML markup.
The best advice I could give you is:
Set width and height on repla...
iPhone - Grand Central Dispatch main thread
...
Dispatching a block to the main queue is usually done from a background queue to signal that some background processing has finished e.g.
- (void)doCalculation
{
//you can use any string instead "com.mycompany.myqueue"
dispatch_queue_t backgroundQueue = dispatch_queue_c...
How can I strip all punctuation from a string in JavaScript using regex?
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If you want to remove specific punctuation from a string, it will probably be best to explicitly remove exactly what you want like
replace(/[.,\/#!$%\^&\*;:{}=\-_`~()]/g,"")
Doing the above still doesn't return the string as you have specified it. If you want t...
How to see top processes sorted by actual memory usage?
... @JosephK It actually takes the kernel less time to repurpose memory from one use to another than to put free memory into use. One requires acceessing and modifying the free list, the other doesn't. Unfortunately, this is an XY question. The problem has to do with performance and may be entire...
typeof for RegExp
...stanceof RegExp will report false when testing a regular expression object from another window, which won't be a problem if this kind of check is not required, but is something to be aware of.
– Tim Down
Dec 3 '10 at 10:49
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Why is there no tuple comprehension in Python?
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Thats a nice tip from Raymond Hettinger. I would still say there is a use case for using the tuple constructor with a generator, such as unpacking another structure, perhaps larger, into a smaller one by iterating over the attrs that you are...
JavaScript: client-side vs. server-side validation
...ir HTTP requests with another tool? What if they send custom HTTP requests from curl or from a script, for example?
(This is not theoretical; eg, I worked on a travel search engine that re-submitted the user's search to many partner airlines, bus companies, etc, by sending POST requests as if the u...
How do I get the application exit code from a Windows command line?
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If you're running directly from a Windows command line and always seeing 0 returned, see Gary's answer: stackoverflow.com/a/11476681/31629
– Ken
Aug 30 '12 at 13:51
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