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iOS 7 sizeWithAttributes: replacement for sizeWithFont:constrainedToSize
...ibutes = @{NSFontAttributeName: [UIFont fontWithName:@"HelveticaNeue" size:14]};
// NSString class method: boundingRectWithSize:options:attributes:context is
// available only on ios7.0 sdk.
CGRect rect = [textToMeasure boundingRectWithSize:CGSizeMake(width, CGFLOAT_MAX)
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中关村服务辐射百万创业者 - 资讯 - 清泛网 - 专注C/C++及内核技术
...消耗激情。创业的目标只有“成功”一个，失败却有“N+1”种。没钱，研发难；没人，推广难；没地，谈判难。空间、人才、资金……成为拦在创业道路上的种种难题。6月25日，“清青创——创业星·穿越计划”正式发布。在这...
Replacing spaces with underscores in JavaScript?
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edited Feb 13 '09 at 15:29
answered Jan 13 '09 at 22:10
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How to git reset --hard a subdirectory?
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With Git 2.23 (August 2019), you have the new command git restore
git restore --source=HEAD -...
How to draw vertical lines on a given plot in matplotlib?
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edited Jul 28 '14 at 4:46
answered Jul 28 '14 at 4:34
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How does “this” keyword work within a function?
..., it's a clever trick. Javascript has objects and functions. (that's not 100% accurate, functions are just objects, but it can sometimes be helpful to think of them as separate things)
The this variable is attached to functions. Whenever you invoke a function, this is given a certain value, depe...