大约有 40,000 项符合查询结果（耗时：0.0441秒） [XML]
All but last element of Ruby array
... # => [1, 2, 3, 4]
a.first a.size - 1 # => [1, 2, 3]
or
a.take 3
or
a.first 3
or
a.pop
which will return the last and leave the array with everything before it
or make the computer work for its dinner:
a.reverse.drop(1).reverse
or
class Array
def clip n=1
take size ...
Should I use multiplication or division?
...advantage disappears. It's quite possible that a future Python VM would make it irrelevant
share
|
improve this answer
|
follow
|
...
How do I add a library project to Android Studio?
How do I add a library project (such as Sherlock ABS) to Android Studio ?
30 Answers
...
NodeJS: How to get the server's port?
...o listener.address() will only return data inside of app.listen()'s callback:
var app = require('express')();
var listener = app.listen(8888, function(){
console.log('Listening on port ' + listener.address().port); //Listening on port 8888
});
Express 3 answer:
I think you are looking for t...
Unable to execute dex: method ID not in [0, 0xffff]: 65536
...tc won't help. Library projects seems intact and dependency seems to be linked correctly.
12 Answers
...
Indentation shortcuts in Visual Studio
...
Tab and Shift+Tab will do that.
Another cool trick is holding down ALT when you select text, it will allow you to make a square selection. Starting with VS2010, you can start typing and it will replace the contents of your square selection with what you type. Absolutely a...
PHP array delete by value (not key)
...
Using array_search() and unset, try the following:
if (($key = array_search($del_val, $messages)) !== false) {
unset($messages[$key]);
}
array_search() returns the key of the element it finds, which can be used to remove that element from the original array using unset(). It ...
Array.Copy vs Buffer.BlockCopy
Array.Copy and Buffer.BlockCopy both do the same thing, but BlockCopy is aimed at fast byte-level primitive array copying, whereas Copy is the general-purpose implementation. My question is - under what circumstances should you use BlockCopy ? Should you use it at any time when you are copyi...
Setting Curl's Timeout in PHP
...p. The dataset is very large, and as a result, the database consistently takes a long amount of time to return an XML response. To fix that, we set up a curl request, with what is supposed to be a long timeout.
...
Java: parse int value from a char
I just want to know if there's a better solution to parse a number from a character in a string (assuming that we know that the character at index n is a number).
...