大约有 48,000 项符合查询结果（耗时：0.0614秒） [XML]
Why does npm install say I have unmet dependencies?
...
|
show 8 more comments
83
...
How to get last N records with activerecord?
... That was the other method I was thinking of, but that seems like even more work since that's 2 queries against the database instead of 1. I guess I assume that you need to iterate over the array at some point, so you could let ruby sort it at at that time. (ie. records.reverse.each do ..)
...
Which is the correct shorthand - “regex” or “regexp” [closed]
...
|
show 2 more comments
65
...
How to find all occurrences of a substring?
...n string function that does what you're looking for, but you could use the more powerful regular expressions:
import re
[m.start() for m in re.finditer('test', 'test test test test')]
#[0, 5, 10, 15]
If you want to find overlapping matches, lookahead will do that:
[m.start() for m in re.finditer...
How to find index of all occurrences of element in array?
...TE: As per VisioN's comment, a simple for loop would get the same job done more efficiently, and it is easier to understand and therefore easier to maintain:
function getAllIndexes(arr, val) {
var indexes = [], i;
for(i = 0; i < arr.length; i++)
if (arr[i] === val)
ind...
How to iterate over arguments in a Bash script
...
|
show 1 more comment
241
...
Hidden Features of Visual Studio (2005-2010)?
...
|
show 6 more comments
95
votes
...
HTML5 Email Validation
It is said "With HTML5, we need no more js or a server side code to check if the user's input is a valid email or url address"
...
Multiple inheritance for an anonymous class
How can an anonymous class implement two (or more) interfaces? Alternatively, how can it both extend a class and implement an interface?
For example, I want to create an object of anonymous class that extends two interfaces:
...