大约有 47,000 项符合查询结果(耗时:0.0486秒) [XML]
WPF ToolBar: how to remove grip and overflow
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153
The grip can be removed by setting the attached property ToolBarTray.IsLocked="True" on the To...
Replace Default Null Values Returned From Left Outer Join
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139
That's as easy as
IsNull(FieldName, 0)
Or more completely:
SELECT iar.Description,
ISN...
Ruby on Rails console is hanging when loading
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edited Sep 7 '19 at 11:45
Peter Mortensen
26.5k2121 gold badges9292 silver badges122122 bronze badges
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What is a 'semantic predicate' in ANTLR?
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170
ANTLR 4
For predicates in ANTLR 4, checkout these stackoverflow Q&A's:
Syntax of semant...
What is `git diff --patience` for?
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186
You can read a post from Bram Cohen, the author of the patience diff algorithm, but I found th...
Patterns for handling batch operations in REST web services?
...xample, to delete several messages at once.
DELETE /mail?&id=0&id=1&id=2
It's a little more complicated to batch update partial resources, or resource attributes. That is, update each markedAsRead attribute. Basically, instead of treating the attribute as part of each resource, you tr...
Convert RGBA PNG to RGB with PIL
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130
Here's a version that's much simpler - not sure how performant it is. Heavily based on some dj...
How to draw polygons on an HTML5 canvas?
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165
Create a path with moveTo and lineTo (live demo):
var ctx = canvas.getContext('2d');
ctx.fill...
JavaScript seconds to time string with format hh:mm:ss
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Uninstall old versions of Ruby gems
...# choose which ones you want to remove
gem uninstall rjb
# remove version 1.1.9 only
gem uninstall rjb --version 1.1.9
# remove all versions less than 1.3.4
gem uninstall rjb --version '<1.3.4'
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