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Create a string of variable length, filled with a repeated character
...entioned here is terse, it is about 10X slower than a string-concatenation-based implementation. It performs especially badly on large strings. See below for full performance details.
On Firefox, Chrome, Node.js MacOS, Node.js Ubuntu, and Safari, the fastest implementation I tested was:
function r...
Reading header data in Ruby on Rails
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Cancel a UIView animation?
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@yourfriendzak, based on a brief test, it looks like it only cancels an animation targeting the same property. I tried changing the alpha of a scrollView whose contentOffset was animated and the contentOffset animation continued.
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How do I install pip on macOS or OS X?
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An extra warning: don't run this when a homebrew based python installed and occurs earlier in PATH (e.g. when you change /etc/paths): it would install pip with root credentials for the wrong python
– acidjunk
Jan 7 '16 at 13:56
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Can you target with css?
...Future
versions of CSS may handle added and
replaced content, but CSS1-based
formatters must treat ‘BR’ specially.
Grant Wagner's tests show that there is no way to style BR as you can do with other elements. There is also a site online where you can test the results in your browser.
U...
Importance of varchar length in MySQL table
...tion you describe, because it stands for "variable character" - the limit, based on your example, would be 200 characters but anything less is accepted and won't fill the allotted size of the column.
VARCHAR also take less space - the values are stored as a one-byte or two-byte length prefix plus ...
C++0x lambda capture by value always const?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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java.lang.OutOfMemoryError: Java heap space
...x<maximum heap size> on the command line. By default, the values are based on the JRE version and system configuration. You can find out more about the VM options on the Java website.
However, I would recommend profiling your application to find out why your heap size is being eaten. NetBeans...
Turning off auto indent when pasting text into vim
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In some embedded systems (based on busybox mainly) :set paste is not implemented, so :set noai should be used instead.
– jcarballo
Aug 6 '13 at 19:26
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Converting any string into camel case
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For my ES2015+ friends: a one liner based on the above code. const toCamelCase = (str) => str.replace(/(?:^\w|[A-Z]|\b\w)/g, (ltr, idx) => idx === 0 ? ltr.toLowerCase() : ltr.toUpperCase()).replace(/\s+/g, '');
– tabrindle
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