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RegEx to find two or more consecutive chars
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This should do the trick:
[a-zA-Z]{2,}
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How do I fetch lines before/after the grep result in bash?
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275
You can use the -B and -A to print lines before and after the match.
grep -i -B 10 'error' da...
JavaScript ternary operator example with functions
...nary syntax in your question; I like the last one the best...
x = (1 < 2) ? true : false;
The use of ternary here is totally uncessesary - you could simply write
x = (1 < 2);
Likewise, the condition element of a ternary statement is always evaluated as a Boolean value, therefore you can ...
anchor jumping by using javascript
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208
You can get the coordinate of the target element and set the scroll position to it. But this i...
Retina displays, high-res background images
...to match the original dimensions:
@media (-webkit-min-device-pixel-ratio: 2),
(min-resolution: 192dpi) {
.box{
background:url('images/box-bg@2x.png') no-repeat top left;
background-size: 200px 200px;
}
}
EDIT
To add a little more to this answer, here is the retina de...
delete map[key] in go?
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edited Jul 21 '15 at 6:34
coolaj86
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Latest jQuery version on Google's CDN
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182
UPDATE 7/3/2014: As of now, jquery-latest.js is no longer being updated.
From the jQuery blog:
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Scala: what is the best way to append an element to an Array?
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206
You can use :+ to append element to array and +: to prepend it:
0 +: array :+ 4
should prod...
How do I save and restore multiple variables in python?
...in a single list, or tuple, for instance:
import pickle
# obj0, obj1, obj2 are created here...
# Saving the objects:
with open('objs.pkl', 'w') as f: # Python 3: open(..., 'wb')
pickle.dump([obj0, obj1, obj2], f)
# Getting back the objects:
with open('objs.pkl') as f: # Python 3: open(...,...
converting drawable resource image into bitmap
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answered Jan 3 '12 at 19:14
poitroaepoitroae
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