大约有 37,000 项符合查询结果（耗时：0.0585秒） [XML]
Adding Only Untracked Files
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edited Aug 17 '17 at 20:29
Joel M.
22811 gold badge22 silver badges1212 bronze badges
answered Sep 1...
Ternary operator in AngularJS templates
...peat loop, class myClass is added. The 3rd time through ($index starts at 0), class anotherClass is added.
ng-style takes an expression that must evaluate to a map/object of CSS style names to CSS values. E.g.,
<li ng-style="{true: {color: 'red'}, false: {}}[$first]">...</li>
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What is the difference between instanceof and Class.isAssignableFrom(…)?
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506
When using instanceof, you need to know the class of B at compile time. When using isAssignabl...
JavaScript variables declare outside or inside loop?
...u've got yourself an accidental global.
In particular:
for (var i; i<100; i++)
do something;
for (var i; i<100; i++)
do something else;
Crockford will recommend you remove the second var (or remove both vars and do var i; above), and jslint will whinge at you for this. But IMO it'...
ImportError: No module named pip
OS: Mac OS X 10.7.5
Python Ver: 2.7.5
16 Answers
16
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How can I check file size in Python?
...something based on the file size. For example, if the size is greater than 0, I will send an email to somebody, otherwise continue to other things.
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Python: try statement in a single line
...iables to something. If they might not get set, set them to None first (or 0 or '' or something if it is more applicable.)
If you do assign all the names you are interested in first, you do have options.
The best option is an if statement.
c = None
b = [1, 2]
if c is None:
a = b
else:
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how to reset
I am developing a metro app with VS2012 and Javascript
27 Answers
27
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JavaScript query string [closed]
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answered Mar 15 '09 at 5:33
Shadow2531Shadow2531
11.1k55 gold badges2828 silver badges3838 bronze badges
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Detect Safari browser
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110
You can easily use index of Chrome to filter out Chrome:
var ua = navigator.userAgent.toLowerCa...