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Does hosts file exist on the iPhone? How to change it? [closed]
... answered Jan 8 '10 at 15:41
Andrew BullockAndrew Bullock
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PostgreSQL database default location on Linux
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The "directory where postgresql will keep all databases" (and configuration) is called "data directory" and corresponds to what PostgreSQL calls (a little confusingly) a "database cluster", which is not related to distributed computing, it just means a group of databases and related...
delete map[key] in go?
...ems a poor use of resources though!
Another way is to check for existence and use the value itself:
package main
func main () {
var sessions = map[string] chan int{};
sessions["moo"] = make (chan int);
_, ok := sessions["moo"];
if ok {
delete(sessions, "moo");
}
}
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Vim: faster way to select blocks of text in visual mode
I have been using vim for quite some time and am aware that selecting blocks of text in visual mode is as simple as SHIFT + V and moving the arrow key up or down line-by-line until I reach the end of the block of text that I want selected.
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What is a clean, pythonic way to have multiple constructors in Python?
...ionary of named arguments
self.num_holes = kwargs.get('num_holes',random_holes())
To better explain the concept of *args and **kwargs (you can actually change these names):
def f(*args, **kwargs):
print 'args: ', args, ' kwargs: ', kwargs
>>> f('a')
args: ('a',) kwargs: {}...
How do I print debug messages in the Google Chrome JavaScript Console?
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Improving on Andru's idea, you can write a script which creates console functions if they don't exist:
if (!window.console) console = {};
console.log = console.log || function(){};
console.warn = console.warn || function(){};
console.err...
Removing multiple files from a Git repo that have already been deleted from disk
... Git repo that I have deleted four files from using rm ( not git rm ), and my Git status looks like this:
29 Answers
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Short circuit Array.forEach like calling break
... new forEach method in JavaScript? I've tried return; , return false; and break . break crashes and return does nothing but continue iteration.
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How to get package name from anywhere?
I am aware of the availability of Context.getApplicationContext() and View.getContext() , through which I can actually call Context.getPackageName() to retrieve the package name of an application.
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Deleting all files from a folder using PHP?
For example I had a folder called `Temp' and I wanted to delete or flush all files from this folder using PHP. Could I do this?
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