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微博为什么限制140字(附短信70字限制考) - 闲聊区 - 清泛IT社区，为创新赋能！
...满足，只好自己来考据一番。twitter说We like to keep it short and sweet! It also just so happens that 140 characters is the perfect length for sending status updates via text message. The standard text message length in most places is 160 characters per message. We reserve 20 characters ...
How to show loading spinner in jQuery?
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ajaxStart and ajaxStop are jQuery events so you can namespace them: stackoverflow.com/questions/1191485/… docs.jquery.com/Namespaced_Events
– David Xia
Apr 16 '11 at 22:57
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How can I determine the current line number in JavaScript?
...nism for determining the line number of the currently executing statement (and if so, what is it)?
8 Answers
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What purpose does a tag serve inside of a tag?
...e been on a "view source" spree lately on websites with interesting design and content. One of those websites, Squarespace , has blocks of <script> tags inside of a <noscript> tag, like so:
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Android Studio marks R in red with error message “cannot resolve symbol R”, but build succeeds
In every project I've tried to create in Android Studio, all usages of R are marked in red with the error message "cannot resolve symbol R", but the compilation succeeds and the application runs. This is really annoying, as it blocks auto-completion and shows huge red waved lines all over my code.
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Eclipse JUNO doesn't start
When I launch Eclipse, it does not start.
An error appears and tells me to see the log file.
"See the log file: /Users/max/work/projects/.metadata/.log"
OS: MacOS 10.7.4
Eclipse: 4.2 Juno
ADT: 20
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finding and replacing elements in a list
I have to search through a list and replace all occurrences of one element with another. So far my attempts in code are getting me nowhere, what is the best way to do this?
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How do I look inside a Python object?
...to code in various projects using Python (including Django web development and Panda3D game development).
22 Answers
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PHP Fatal error: Call to undefined function json_decode()
...t silly. Nevertheless Debian has removed the non-compliant JSON extension, and instead offered a replacement extension that is functionally equivalent.
To be clear: PHP itself has NOT removed JSON, it's still in master. This is a distro / package manager issue.
Rasmus makes it pretty clear:
We...
How to get the file name from a full path using JavaScript?
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var filename = fullPath.replace(/^.*[\\\/]/, '')
This will handle both \ OR / in paths
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