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How to drop multiple columns in postgresql
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Check this:
ALTER TABLE table DROP COLUMN col1, DROP COLUMN col2;
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Escaping a forward slash in a regular expression
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91
What context/language? Some languages use / as the pattern delimiter, so yes, you need to escap...
How to get a specific “commit” of a gem from github?
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edited Apr 20 '18 at 21:30
jeffmcc
23922 silver badges99 bronze badges
answered May 25 '11 at...
How to modify PATH for Homebrew?
Trying to install ruby 1.9.3, read that I need to install homebrew first. Ran brew doctor, and it's giving me a bunch of warnings. One of which is:
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XMLHttpRequest status 0 (responseText is empty)
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19 Answers
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Injecting $state (ui-router) into $http interceptor causes circular dependency
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213
The Fix
Use the $injector service to get a reference to the $state service.
var interceptor =...
Ruby: Change negative number to positive number?
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271
Using abs will return the absolute value of a number
-300.abs # 300
300.abs # 300
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How do I include a path to libraries in g++
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168
To specify a directory to search for (binary) libraries, you just use -L:
-L/data[...]/lib
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Modular multiplicative inverse function in Python
...e inverse of a number, i.e. a number y = invmod(x, p) such that x*y == 1 (mod p) ? Google doesn't seem to give any good hints on this.
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Xcode 4 - detach the console/log window
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125
Go to Xcode preferences, and open the Behavior tab.
Tell Xcode to open a tab called "Debugger...