大约有 10,000 项符合查询结果(耗时:0.0230秒) [XML]

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Test for existence of nested JavaScript object key

...r Steele: var level3 = (((test || {}).level1 || {}).level2 || {}).level3; alert( level3 ); In fact that whole article is a discussion of how you can do this in javascript. He settles on using the above syntax (which isn't that hard to read once you get used to it) as an idiom. ...
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How can I use a Python script in the command line without cd-ing to its directory? Is it the PYTHONP

How can I make any use of PYTHONPATH? When I try to run a script in the path the file is not found. When I cd to the directory holding the script the script runs. So what good is the PYTHONPATH? ...
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How to know if other threads have finished?

...want to start 15 downloads and simply remove status from the status bar or alert the user when a download has completed, in which case a callback would work better. – digitaljoel Mar 31 '09 at 18:47 ...
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How can I limit a “Run Script” build phase to my release configuration?

I have a shell script that I would like to run at the end of my target's build phase. However, I would like this script to only run when I build with the release configuration. How can this be done? Thanks! ...
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jQuery $(document).ready and UpdatePanels?

... // re-bind your jQuery events here }); The PageRequestManager is a javascript object which is automatically available if an update panel is on the page. You shouldn't need to do anything other than the code above in order to use it as long as the UpdatePanel is on the page. If you need more det...
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Format date and time in a Windows batch script

In a Windows (Windows XP) batch script I need to format the current date and time for later use in files names, etc. 33 An...
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Is there a way to run Bash scripts on Windows? [closed]

...tions. One of the down sides (as with every OS) is that I can not run Bash scripts. Is there a way to run Bash scripts on Windows by installing some software? It is ok if it does not work 100%, but as long as the most common functionality is available it should be great. ...
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Passing multiple values to a single PowerShell script parameter

I have a script to which I pass server name(s) in $args. 4 Answers 4 ...
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pip broke. how to fix DistributionNotFound error?

... '__main__': sys.exit( load_entry_point('pip==0.8.2', 'console_scripts', 'pip')() ) I installed pip through easy_install which probably caused me this headache. I think this is how you should do it nowadays.. $ sudo apt-get install python-pip python-dev build-essential $ sudo pip...
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Why does only the first line of this Windows batch file execute but all three lines execute in a com

...nds, one after the other. Each command can be successfully executed in the script - by itself!. But when I add all three commands to the same file, only the first one executes before the script exits. Any idea why? ...