大约有 32,294 项符合查询结果（耗时：0.0425秒） [XML]
Why should I declare a virtual destructor for an abstract class in C++?
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@Mankarse: can you explain what causes it to be undefined? If Derived didn't implement its own destructor, would it still be undefined behavior?
– Ponkadoodle
Mar 20 '12 at 0:36
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jQuery equivalent of JavaScript's addEventListener method
...ents in all cross-browser abstractions, jQuery's included.
The nearest to what you are looking for in jQuery is using bind() (superseded by on() in jQuery 1.7+) or the event-specific jQuery methods (in this case, click(), which calls bind() internally anyway). All use the bubbling phase of a raise...
How to find whether or not a variable is empty in Bash
...ollowing command tests if $var is empty:
if [[ -z "$var" ]]; then
# Do what you want
fi
The command man test is your friend.
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.gitignore exclude folder but include specific subfolder
...pattern (“unignore”) might match something under application/).
To do what you want, you have to “unignore” every parent directory of anything that you want to “unignore”. Usually you end up writing rules for this situation in pairs: ignore everything in a directory, but not some certai...
UILabel sizeToFit doesn't work with autolayout ios6
...nts, with no code at all and no messing with its compression resistance or whatever. It is dead simple.
In more complex cases, just set the label's preferredMaxLayoutWidth.
Either way, the right thing happens automatically.
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Where can I find a list of scopes for Google's OAuth 2.0 API? [closed]
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What you are looking for is the Google APIs Discovery Service.
A few other interesting resources:
An excellent blog by Nicolas Garnier which describes the important things behind this service.
The Google OAuth2 playgroun...
Stop node.js program from command line
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@Eleeist, What are you using as a terminal? It works great for me.
– Brad
May 9 '12 at 19:22
3
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Correct way to pause Python program
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I know about the sleep function in the time module but what if I have a long block of text I want the user to read?
– RandomPhobia
Jul 19 '12 at 0:34
7
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How to structure a express.js application?
... |-zoo.js
| |~models
| |-zoo.js
|-index.js
I use Exports to return what's relevant. For instance, in the models I do:
module.exports = mongoose.model('PhoneNumber', PhoneNumberSchema);
and then if I need to create a phone number, it's as simple as:
var PhoneNumber = require('../models/phone...
Where is array's length property defined?
...S description of each array type having a public final field length is somewhat misleading :(
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