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Coding Practices which enable the compiler/optimizer to make a faster program
...& foo1, const Foo* foo2, int numFoo, Foo& barOut)
{
for (int i=0; i<numFoo, i++)
{
barOut.munge(foo1, foo2[i]);
}
}
the compiler doesn't know that foo1 != barOut, and thus has to reload foo1 each time through the loop. It also can't read foo2[i] until the write to b...
How do I get the first n characters of a string without checking the size or going out of bounds?
...
Here's a neat solution:
String upToNCharacters = s.substring(0, Math.min(s.length(), n));
Opinion: while this solution is "neat", I think it is actually less readable than a solution that uses if / else in the obvious way. If the reader hasn't seen this trick, he/she has to think ...
pretty-print JSON using JavaScript
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+100
Pretty-printing is implemented natively in JSON.stringify(). The third argument enables pretty printing and sets the spacing to use:
...
stringstream, string, and char* conversion confusion
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202
stringstream.str() returns a temporary string object that's destroyed at the end of the full ex...
How to strip leading “./” in unix “find”?
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answered Apr 7 '10 at 22:57
Tim GreenTim Green
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How do I calculate the date in JavaScript three months prior to today?
... works for January. Run this snippet:
var d = new Date("January 14, 2012");
console.log(d.toLocaleDateString());
d.setMonth(d.getMonth() - 3);
console.log(d.toLocaleDateString());
There are some caveats...
A month is a curious thing. How do you define 1 month? 30 days? Most peo...
Reading/parsing Excel (xls) files with Python
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answered May 31 '10 at 12:24
taleinattaleinat
7,3422626 silver badges3838 bronze badges
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How do I create a basic UIButton programmatically?
...le:@"Show View" forState:UIControlStateNormal];
button.frame = CGRectMake(80.0, 210.0, 160.0, 40.0);
[view addSubview:button];
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How to reset (clear) form through JavaScript?
...ment method (not one on the jQuery object), so you need:
$("#client.frm")[0].reset();
//faster version:
$("#client")[0].reset();
Or without jQuery:
document.getElementById("client").reset();
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UIViewController viewDidLoad vs. viewWillAppear: What is the proper division of labor?
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Suragch
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answered Oct 16 '09 at 18:28
LeonBrusse...