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Setting the selected value on a Django forms.ChoiceField
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116
Try setting the initial value when you instantiate the form:
form = MyForm(initial={'max_numb...
PHP cURL vs file_get_contents
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129
file_get_contents() is a simple screwdriver. Great for simple GET requests where the header, H...
How do I use the nohup command without getting nohup.out?
...ll - that's where it goes instead.
nohup command >/dev/null 2>&1 # doesn't create nohup.out
If you're using nohup, that probably means you want to run the command in the background by putting another & on the end of the whole thing:
nohup command >/dev/null 2>&1 &...
Concurrent vs serial queues in GCD
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217
A simple example: you have a block that takes a minute to execute. You add it to a queue from t...
Finding three elements in an array whose sum is closest to a given number
Given an array of integers, A 1 , A 2 , ..., A n , including negatives and positives, and another integer S. Now we need to find three different integers in the array, whose sum is closest to the given integer S. If there exists more than one solution, any of them is ok.
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Sass .scss: Nesting and multiple classes?
...ements and -classes:
.element{
&:hover{ ... }
&:nth-child(1){ ... }
}
However, you can place the & at virtually any position you like*, so the following is possible too:
.container {
background:red;
#id &{
background:blue;
}
}
/* compiles to: */
.conta...
Make HTML5 video poster be same size as video itself
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13 Answers
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javascript toISOString() ignores timezone offset [duplicate]
...r localISOTime = (new Date(Date.now() - tzoffset)).toISOString().slice(0, -1);
// => '2015-01-26T06:40:36.181'
The slice(0, -1) gets rid of the trailing Z which represents Zulu timezone and can be replaced by your own.
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Piping both stdout and stderr in bash?
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172
(Note that &>>file appends to a file while &> would redirect and overwrite a ...