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Multiple commands on a single line in a Windows batch file
...ng on delayed expansion:
pax> cmd /v:on /c "echo !time! & ping 127.0.0.1 >nul: & echo !time!"
15:23:36.77
15:23:39.85
That's needed from the command line. If you're doing this inside a script, you can just use setlocal:
@setlocal enableextensions enabledelayedexpansion
@echo off
ec...
How do I install an old version of Django on virtualenv?
...
There was never a Django 1.0.7. The 1.0 series only went up to 1.0.4. You can see all the releases in the tags section of the Django code repository.
However to answer your question, don't use easy_install, use pip. (If it's not already installed, do ...
Iterating Through a Dictionary in Swift
...
360
Dictionaries in Swift (and other languages) are not ordered. When you iterate through the dictio...
Removing ul indentation with CSS
...This code will remove the indentation and list bullets.
ul {
padding: 0;
list-style-type: none;
}
http://jsfiddle.net/qeqtK/2/
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How can you sort an array without mutating the original array?
...
Putzi SanPutzi San
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Which, if any, C++ compilers do tail-recursion optimization?
...s such as:
int bar(int, int);
int foo(int n, int acc) {
return (n == 0) ? acc : bar(n - 1, acc + 2);
}
int bar(int n, int acc) {
return (n == 0) ? acc : foo(n - 1, acc + 1);
}
Letting the compiler do the optimisation is straightforward: Just switch on optimisation for speed:
For MSVC,...
Swift equivalent for MIN and MAX macros
... JackJack
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How do I check for null values in JavaScript?
... will check for empty strings (""), null, undefined, false and the numbers 0 and NaN
Please note that if you are specifically checking for numbers it is a common mistake to miss 0 with this method, and num !== 0 is preferred (or num !== -1 or ~num (hacky code that also checks against -1)) for funct...
Concatenating string and integer in python
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answered Jul 19 '12 at 10:43
user647772user647772
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What happened to “HelveticaNeue-Italic” on iOS 7.0.3
Just upgraded my iPod touch to iOS 7.0.3 and "HelveticaNeue-Italic" seems to have disappeared. When I query on the phone with:
...