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String concatenation vs. string substitution in Python
... large boosts in performance..."
If performance matters, this is good to know.
However, performance problems I've seen have never come down to string operations. I've generally gotten in trouble with I/O, sorting and O(n2) operations being the bottlenecks.
Until string operations are the perfor...
Sending websocket ping/pong frame from browser
...was a recommended practice when user-agents were frequently refreshed. But now many websites are designed as SPAs. In this environment it might be quite essential for the client application to regularly ping the server in order to ensure the connection has not been lost.
– Noel...
Counting Chars in EditText Changed Listener
...xtChanged, this is called after the change has already been made. However, now the text may be modified.
editable: This is the editable text of the EditText. If you change it, though, you have to be careful not to get into an infinite loop. See the documentation for more details.
Supplemental im...
Blurry text after using CSS transform: scale(); in Chrome
...lurry movement cause by opacity transition, that is. The weird movement is now gone, BUT it has made the texts in my div permanently blurred instead.
– ITWitch
Jan 18 '17 at 8:45
1...
How to find the lowest common ancestor of two nodes in any binary tree?
...e for your other node in question, resulting in (steps not shown): {1, 2}
Now compare the two lists you made looking for the first element where the list differ, or the last element of one of the lists, whichever comes first.
This algorithm requires O(h) time where h is the height of the tree. In ...
JavaScript - Get Portion of URL Path
...
@JoshNoe Turns out you can now use the same properties on anchor elements. See the updated answer.
– Nicole
Oct 10 '13 at 21:50
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Is there a way to escape a CDATA end token in xml?
...m an array of names by index, such as "if(fields[fieldnames[0]]>3)" and now you have to change it to "if(fields[fieldnames[0]]]]><![CDATA[>3)", which defeats of purpose of using CDATA to make it more readable, LOL. I'd like to verbally slap whoever came up with the CDATA syntax.
...
Circle-Rectangle collision detection (intersection)
...our times. The image shows the area in which the center of the circle must now lie. Note that only the single quadrant is shown. The rectangle is the grey area, and the red border outlines the critical area which is exactly one radius away from the edges of the rectangle. The center of the circle ha...
How do I get a UTC Timestamp in JavaScript?
...me is passed in, the results will differ. Observe (I'm in GMT +02:00 right now, and it's 07:50):
> var d1 = new Date();
> d1.toUTCString();
"Sun, 18 Mar 2012 05:50:34 GMT" // two hours less than my local time
> Math.floor(d1.getTime()/ 1000)
1332049834
> var d2 = new Date( d1.getUTCFu...
Getting an empty JQuery object
...it by using PHP instead of jQuery so I can't really dig more into it right now.
– cregox
Mar 2 '11 at 19:02
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