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What is the difference between id and class in CSS, and when should I use them? [duplicate]
...S uses the prefix # for IDs and . for Classes.)
However color was an HTML 4.01 <font> tag attribute deprecated in HTML 5.
In CSS there is no "font-color", the style is color so the above should read:
Example
<div id="header_id" class="header_class">Text</div>
#header_id {colo...
How do I loop through a date range?
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484
Well, you'll need to loop over them one way or the other. I prefer defining a method like thi...
Best way to stress test a website [duplicate]
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edited Jan 28 '14 at 14:10
Cleanshooter
2,09733 gold badges1616 silver badges2727 bronze badges
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Find the version of an installed npm package
... in:
projectName@projectVersion /path/to/project/folder
└── grunt@0.4.1
Alternatively, you can just run npm list without passing a package name as an argument to see the versions of all your packages:
├─┬ cli-color@0.1.6
│ └── es5-ext@0.7.1
├── coffee-script@1.3.3
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How to add leading zeros for for-loop in shell? [duplicate]
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247
Use the following syntax:
$ for i in {01..05}; do echo "$i"; done
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02
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05
Disclaimer: L...
How can I clear or empty a StringBuilder? [duplicate]
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answered Mar 4 '11 at 10:29
Marcus FrödinMarcus Frödin
10.5k22 gold badges2222 silver badges1616 bronze badges
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Rank items in an array using Python/NumPy, without sorting array twice
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Use slicing on the left-hand side in the last step:
array = numpy.array([4,2,7,1])
temp = array.argsort()
ranks = numpy.empty_like(temp)
ranks[temp] = numpy.arange(len(array))
This avoids sorting twice by inverting the permutation in the last step.
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Tricky Google interview question
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Dijkstra derives an eloquent solution in "A Discipline of Programming". He attributes the proble...
Page redirect after certain time PHP
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edited Jun 12 '14 at 13:51
jp2code
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java.lang.NoClassDefFoundError: org/hamcrest/SelfDescribing
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Eric Leschinski
115k4949 gold badges368368 silver badges313313 bronze badges
answered Sep 28 '13 at 8:14
Jiacai LiuJiacai...