大约有 40,000 项符合查询结果（耗时：0.0412秒） [XML]
Counting the occurrences / frequency of array elements
...be faster than creating an associative array.
– quant_dev
Sep 29 '17 at 20:24
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Rails 3.1: Engine vs. Mountable App
...s, someone please let me know and I'll fix this response. I have made a small article about the subject here Cheers!
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Passing arguments to C# generic new() of templated type
...tion you must constrain it with the "new" flag.
public static string GetAllItems<T>(...) where T : new()
However that will only work when you want to call the constructor which has no parameters. Not the case here. Instead you'll have to provide another parameter which allows for the cr...
Original purpose of ? [closed]
...purpose today because HTTP as we know it today is still, at least fundamentally, a stateless protocol.
This use case was actually first described in HTML 3.2 (I'm surprised HTML 2.0 didn't include such a description):
type=hidden
These fields should not be rendered and provide a means for servers t...
Crash logs generated by iPhone Simulator?
...ept trying a few things in the app and it kept crashing). The crashes were all the same, so it wasn't an issue, but I am wondering if this is generally the case?
– Samik R
Dec 8 '12 at 7:46
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Random record from MongoDB
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Do a count of all records, generate a random number between 0 and the count, and then do:
db.yourCollection.find().limit(-1).skip(yourRandomNumber).next()
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How to generate a random string in Ruby
...).chr }.join
I spend too much time golfing.
(0...50).map { ('a'..'z').to_a[rand(26)] }.join
And a last one that's even more confusing, but more flexible and wastes fewer cycles:
o = [('a'..'z'), ('A'..'Z')].map(&:to_a).flatten
string = (0...50).map { o[rand(o.length)] }.join
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$.focus() not working
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Actually the example you gave for focusing on this site works just fine, as long as you're not focused in the console. The reason that's not working is simply because it's not stealing focus from the dev console. If you run the f...
Print a string as hex bytes?
... Note that in python3, the concept of printing a str as hex doesn't really make sense; you'll want to print bytes object as hex (convert str to bytes by calling .encode()).
– mic_e
May 8 '15 at 12:53
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Send string to stdin
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@Pyrolistical yes! Especially useful when mastering for example a perl oneliner from a command line - easy editing of perl's arguments without the need much backward movements with a cursor. :)
– jm666
Feb 12 '1...