大约有 36,010 项符合查询结果(耗时:0.0712秒) [XML]

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Can I set the height of a div based on a percentage-based width? [duplicate]

Let's say I've got a div that has a width of 50% of the body. How do I make its height equal to that value? So that when the browser window is 1000px wide, the div's height and width are both 500px. ...
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Is there a way to iterate over a range of integers?

... I don't think most people would call this three-expression version more simple than what @Vishnu wrote. Only perhaps after years and years of C or Java indoctrination ;-) – Thomas Ahle Jun...
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How to extract epoch from LocalDate and LocalDateTime?

How do I extract the epoch value to Long from instances of LocalDateTime or LocalDate ? I've tried the following, but it gives me other results: ...
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Django template how to look up a dictionary value with a variable

...et(key) (I use .get so that if the key is absent, it returns none. If you do dictionary[key] it will raise a KeyError then.) usage: {{ mydict|get_item:item.NAME }} share | improve this answer ...
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Real life example, when to use OUTER / CROSS APPLY in SQL

...y_plan(qs.plan_handle) 3) Reusing a column alias SELECT number, doubled_number, doubled_number_plus_one FROM master..spt_values CROSS APPLY (SELECT 2 * CAST(number AS BIGINT)) CA1(doubled_number) CROSS APPLY (SELECT doubled_number + 1) CA2(doubled_number_plus_one) 4) Unpivoti...
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Formula to determine brightness of RGB color

... Do you mean brightness? Perceived brightness? Luminance? Luminance (standard for certain colour spaces): (0.2126*R + 0.7152*G + 0.0722*B) [1] Luminance (perceived option 1): (0.299*R + 0.587*G + 0.114*B) [2] Luminance (perc...
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What is the equivalent of “colspan” in an Android TableLayout?

... It seems that there is an attribute doing that : layout_span UPDATE: This attribute must be applied to the children of the TableRow. NOT to the TableRow itself. share | ...
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Detect if called through require or directly by command line

...lled directly'); } else { console.log('required as a module'); } See documentation for this here: https://nodejs.org/docs/latest/api/modules.html#modules_accessing_the_main_module share | impr...
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Rubymine: How to make Git ignore .idea files created by Rubymine

...ils projects. Very often, Rubymine makes changes in .idea/* files that I don't care about. But it keeps preventing me from checking out new branches, and makes my version of .idea/ different from my coworkers. ...
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Use rvmrc or ruby-version file to set a project gemset with RVM?

...ed by other Ruby version switchers such as rbenv or chruby. This file also does not require trusting as it is just the name of a Ruby version and will not be executed in any way. If you use .ruby-version you can include @gemset in the file but this will not be compatible with other switchers. To ma...