大约有 47,000 项符合查询结果（耗时：0.0666秒） [XML]
How to get the index of an element in an IEnumerable?
... course, you'd have to rework the found==null condition (since found would now be a KVP value). Maybe using DefaultIfEmpty() or KVP<T, int?> (nullable index)
– kornman00
Jul 20 '14 at 10:59
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foreach with index [duplicate]
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This can now get a bit shorter when using a C# 7 ValueTuple: foreach (var (x, i) in someCollection.Select((x, i) => (x, i)) ) { ... }
– FernAndr
Sep 17 '19 at 12:20
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jQuery .ready in a dynamically inserted iframe
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@cam8001: It was a typo - has now been fixed.
– Már Örlygsson
Mar 28 '11 at 12:10
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Why am I getting ibtool failed with exit code 255?
...s --errors --notices yourfile.xib > alerts.plist
which will crash, but now you have the crashlog, in my case it was an issue with simulated metrics:
localhost:Classes me$ ibtool --warnings --errors --notices CodeViewController.xib > alerts.plist
2014-04-25 17:40:48.625 ibtoold[11691:507...
Get epoch for a specific date using Javascript
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You can also use Date.now() function.
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How can I get a channel ID from YouTube?
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You may have to search "externalId" now as I couldn't find anything for "channel-external-id"
– Daniel
Sep 22 '17 at 6:16
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Questions every good Java/Java EE Developer should be able to answer? [closed]
...erence between Set, Map and List?
I'm still amazed how many people don't know this one in a telephone interview.
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answered Jan 22 '10 at 1:09
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Is it a bad practice to catch Throwable?
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How do you know what was allocated and what wasn't prior to the OOME? All bets are off once you get that, even inside a J2EE container like Tomcat or JBoss.
– bmauter
May 31 '13 at 2:05
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How do I get the difference between two Dates in JavaScript?
...g(Math.floor(((b - a) % msDay) / msMinute) + ' full minutes between');
Now some pitfalls. Try this:
console.log(a - 10);
console.log(a + 10);
So if you have risk of adding a number and Date, convert Date to number directly.
console.log(a.getTime() - 10);
console.log(a.getTime() + 10);
My f...
Insert auto increment primary key to existing table
...ng to alter a table which has no primary key nor auto_increment column. I know how to add an primary key column but I was wondering if it's possible to insert data into the primary key column automatically (I already have 500 rows in DB and want to give them id but I don't want to do it manually). A...