大约有 49,000 项符合查询结果（耗时：0.0575秒） [XML]
Use of alloc init instead of new
...s here: http://macresearch.org/difference-between-alloc-init-and-new
Some selected ones are:
new doesn't support custom initializers (like initWithString)
alloc-init is more explicit than new
General opinion seems to be that you should use whatever you're comfortable with.
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How to prevent the activity from loading twice on pressing the button
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This is the correct approach. It will even handle Button Selected States for you (if you provide them) and all the Material Design “goodies” you’d expect from a simple standard Widget. I can’t believe people use timers for this. Then you start seeing strange libraries to ha...
How to force child div to be 100% of parent div's height without specifying parent's height?
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This should be the selected answer
– Gabriel
Apr 26 '18 at 13:33
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JavaScript property access: dot notation vs. brackets?
...t notation allows access to properties containing
special characters and selection of
properties using variables
Another example of characters that can't be used with dot notation is property names that themselves contain a dot.
For example a json response could contain a property called...
Undo git update-index --assume-unchanged
...will print all files with their status
grep '^[a-z]' will filter files and select only assume unchanged
cut -c 3- will remove status and leave only paths, cutting from the 3-rd character to the end
tr '\012' '\000' will replace end of line character (\012) to zero character (\000)
xargs -0 git updat...
Delete all local changesets and revert to tree
... get out of a (small) mess is to first update to the latest revision, then select your changesets and initiate "merge with local". When the merge dialogue appears, simply click the little '+' icon to reveal some extra options, one of which is "discard changesets from merge target (other) revision". ...
How can I see the size of a GitHub repository before cloning it?
...ip ever worked, but in any case, doing so now only downloads the currently selected branch with no history.
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How to embed a video into GitHub README.md?
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I think this should be the selected answer. This is the closest to a video as you can get, and to most people it is a video. What is a video? Still frames moving in sequence to give us the illusion it is playing. An animated gif is the same thing... Th...
Linux command (like cat) to read a specified quantity of characters
...the chars in line 5 and chars 5 to 8 of line 5,
Note: tail -1 is used to select the last line displayed by the head.
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How do I clone a specific Git branch? [duplicate]
... is what I wanted. (I actually wanted to fetch multiple branches, but only selected ones; for that, it sufficed to repeatedly remote add and checkout as here, then git remote rm origin to clean up.)
– Jesse Glick
Sep 3 '14 at 1:45
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