大约有 30,000 项符合查询结果(耗时:0.0400秒) [XML]
How would you count occurrences of a string (actually a char) within a string?
... than either of these! I've just done a quick benchmark with "/once/upon/a/time/" and the results are as follows:
Your original = 12s
source.Count = 19s
source.Split = 17s
foreach (from bobwienholt's answer) = 10s
(The times are for 50,000,000 iterations so you're unlikely to notice muc...
What is the JavaScript convention for no operation?
...be invoked as a function and essentially does nothing as shown here:
setTimeout(function() {
console.log('Start: ', Date.now());
Function.prototype();
console.log('End : ', Date.now());
}, 1000);
Although this is a "true noop" since most browsers seem to do nothing to ex...
Generating a drop down list of timezones with PHP
...t sites need some way to show the dates on the site in the users preferred timezone. Below are two lists that I found and then one method using the built in PHP DateTime class in PHP 5.
...
SQL join: selecting the last records in a one-to-many relationship
... few purchases) 10% faster then @Stefan Haberl's solution and more than 10 times better than accepted answer
– Juraj Bezručka
May 22 '18 at 10:27
...
private[this] vs private
...pilation error on "that.y".
(source)
so you can do private[this] every time you want but you can have some problem if you need refer it
share
|
improve this answer
|
fol...
Hibernate - Batch update returned unexpected row count from update: 0 actual row count: 0 expected:
...d annotated with @Transactional I had a call to another service (with long times of response). The method updates some properties of the entity (after the method, the entity still exists in the database). If the user requests two times the method (as he thinks it doesn't work the first time) when ex...
How to speed up insertion performance in PostgreSQL
...before starting the import, re-create them afterwards. (It takes much less time to build an index in one pass than it does to add the same data to it progressively, and the resulting index is much more compact).
If doing the import within a single transaction, it's safe to drop foreign key constrain...
Check if a JavaScript string is a URL
... a kettle on, went to a toilet, called my mum and the thing was done in no time...
– Mars Robertson
May 2 '16 at 13:59
64
...
How to handle invalid SSL certificates with Apache HttpClient? [duplicate]
...va 7 (an UnsupportedOperationExcetpion when you run InstallCert the second time to check whether the certificate has been correctly installed).
– Pino
Feb 12 '14 at 12:13
...
Memory footprint of Haskell data types
...ata type in Haskell (mostly with GHC)? Is it possible to evaluate it at runtime (e.g. in GHCi) or is it possible to estimate memory requirements of a compound data type from its components?
...
