大约有 40,000 项符合查询结果(耗时:0.0550秒) [XML]

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What is the difference between typeof and instanceof and when should one be used vs. the other?

...; // true typeof function() {} == 'function'; // true Use instanceof for complex built in types: /regularexpression/ instanceof RegExp; // true typeof /regularexpression/; // object [] instanceof Array; // true typeof []; //object {} instanceof Object; // true typeof {}; // object And the las...
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How to make an ImageView with rounded corners?

...u can do the following code to manually round the corners of your images. http://www.ruibm.com/?p=184 This isn't my code, but I've used it and it's works wonderfully. I used it as a helper within an ImageHelper class and extended it just a bit to pass in the amount of feathering I need for a given...
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Most popular screen sizes/resolutions on Android phones [closed]

... see the resolutions for those categories in the Table 2, in this section: http://developer.android.com/guide/practices/screens_support.html#testing share | improve this answer | ...
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Having Django serve downloadable files

... (or the file itself), but the actual file serving is handled by Apache/Lighttpd. Once you've set up mod_xsendfile, integrating with your view takes a few lines of code: from django.utils.encoding import smart_str response = HttpResponse(mimetype='application/force-download') # mimetype is replace...
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How to determine SSL cert expiration date from a PEM encoded certificate?

... edited May 23 '17 at 12:10 Community♦ 111 silver badge answered Jan 23 '14 at 2:01 that other guythat o...
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Can I return the 'id' field after a LINQ insert?

...ubmitChanges(); return productCategory.ProductCategoryID; } reference: http://blog.jemm.net/articles/databases/how-to-common-data-patterns-with-linq-to-sql/#4 share | improve this answer ...
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John Carmack's Unusual Fast Inverse Square Root (Quake III)

... by the hexadecimal form of its floating-point representation, 0x5f3759df" https://mrob.com/pub/math/numbers-18.html On the same site it explains the whole thing. https://mrob.com/pub/math/numbers-16.html#le009_16 share ...
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How SID is different from Service name in Oracle tnsnames.ora

... Please see: http://www.sap-img.com/oracle-database/finding-oracle-sid-of-a-database.htm What is the difference between Oracle SIDs and Oracle SERVICE NAMES. One config tool looks for SERVICE NAME and then the next looks for SID...
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Update one MySQL table with values from another

...tables of a join have an identical named key such as id. ie an equi-join - http://en.wikipedia.org/wiki/Join_(SQL)#Equi-join share | improve this answer | follow ...
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How to serialize a TimeSpan to XML

... happily use the approach you've posted; it is (for example) efficient (no complex parsing etc), culture independent, unambiguous, and timestamp-type numbers are easily and commonly understood. As an aside, I often add: [Browsable(false), EditorBrowsable(EditorBrowsableState.Never)] This just hi...