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How to Deep clone in javascript
...first, a code example which clones object literals, any primitives, arrays and DOM nodes.
function clone(item) {
if (!item) { return item; } // null, undefined values check
var types = [ Number, String, Boolean ],
result;
// normalizing primitives if someone did new String('a...
Create nice column output in python
I am trying to create a nice column list in python for use with commandline admin tools which I create.
18 Answers
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How is the default max Java heap size determined?
If I omit the -Xmxn option from the Java command line then a default value will be used. According to Java documentation
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WPF and initial focus
...you can read the remarks on msdn.microsoft.com/en-us/library/… to understand how the control you attach this to matters.
– Joel McBeth
Jul 1 '14 at 23:07
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How to draw a rounded Rectangle on HTML Canvas?
...od to draw a rectangle with rounded corners.
How about using the lineTo() and arc() methods?
You can also use the quadraticCurveTo() method instead of the arc() method.
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How to fix HTTP 404 on Github Pages?
...h-pages branch.
Everything looks good, I have my index.html , my CSS, JS and pictures folders.
30 Answers
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Why is there huge performance hit in 2048x2048 versus 2047x2047 array multiplication?
...L is always power of 2.
The six comes from fact that 2^6 == 64 bytes is standard size of cache line.
Now what does this mean? Well it means that if I have address X and address Y and
(X >> 6) - (Y >> 6) is divisible by L (i.e. some large power of 2), they will be stored in the same ca...
C char array initialization
...o
char buf[10] = {'a', 0, 0, 0, 0, 0, 0, 0, 0, 0};
As you can see, no random content: if there are fewer initializers, the remaining of the array is initialized with 0. This the case even if the array is declared inside a function.
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Abstract methods in Python [duplicate]
...seems too easy for me in Java yet up till now I have been unable to understand in Python which is surprising to me at least.
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Test if a variable is set in bash when using “set -o nounset”
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I tried this and I'm surprised this works... Everything is correct except according to "info bash", "${WHATEVER-}" should have a ":" (colon) before the "-" (dash) like: "${WHATEVER:-}", and "${WHATEVER+defined}" should have a colon before...