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Why start an ArrayList with an initial capacity?
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If you know in advance what the size of the ArrayList is going to be, it is more efficient to specify the initial capacity. If you don't do this, the internal array will have to be repeatedly reallocated as the list grows.
The large...
Which is faster in Python: x**.5 or math.sqrt(x)?
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I've now run it 3 times on codepad.org and all three times a() was much faster than b().
– Jeremy Ruten
Nov 29 '08 at 1:38
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How to initialise memory with new operator in C++?
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It's a surprisingly little-known feature of C++ (as evidenced by the fact that no-one has given this as an answer yet), but it actually has special syntax for value-initializing an array:
new int[10]();
Note that you must use the empty parentheses — ...
How to change the cursor into a hand when a user hovers over a list item?
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In light of the passage of time, as people have mentioned, you can now safely just use:
li { cursor: pointer; }
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Prevent BODY from scrolling when a modal is opened
...this is an easy fix to add it to your site.
Update 8th feb, 2013
This has now stopped working in Twitter Bootstrap v. 2.3.0 -- they no longer add the modal-open class to the body.
A workaround would be to add the class to the body when the modal is about to be shown, and remove it when the modal i...
super() raises “TypeError: must be type, not classobj” for new-style class
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And this is one of the reasons we now have Python 3.
– Steven Rumbalski
Mar 15 '12 at 15:09
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Hidden features of Python [closed]
What are the lesser-known but useful features of the Python programming language?
191 Answers
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Dynamically change color to lighter or darker by percentage CSS (Javascript)
...ew links which are, let's say blue color like the blue links on this site. Now I want to make some other links, but with lighter color. Obviously I can just do simply by the hex code adding in the CSS file, but our site lets user decide what colors they want for their customized profile/site (like T...
How to specify an element after which to wrap in css flexbox? [duplicate]
.../blog/flexbox-break-to-new-row/
EDIT: This is really easy to do with Grid now: https://codepen.io/anon/pen/mGONxv?editors=1100
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I don't think you can break after a specific item. The best you can probably do is change the flex-basis at your breakpoints. So:
ul {
flex-f...
How to initialise a string from NSData in Swift
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Added a Swift 2.0 version as well now
– Sunkas
Nov 9 '15 at 8:50
Would you ha...