大约有 40,000 项符合查询结果（耗时：0.0464秒） [XML]
How to find all occurrences of an element in a list?
...have the array, otherwise the cost of converting outweighs the speed gain (tested on integer lists with 100, 1000 and 10000 elements).
NOTE: A note of caution based on Chris_Rands' comment: this solution is faster than the list comprehension if the results are sufficiently sparse, but if the list h...
How to remove the arrow from a select element in Firefox
...uch help, I thought it was about time I give something back.
I have only tested it in firefox (mac) version 18, and then 22 (after I updated).
All feedback is welcome.
share
|
improve this answ...
Programmatically trigger “select file” dialog box
...
THANK YOU!!!! I've been testing all these answers in the javascript console and I've been going nuts!
– jdkealy
Jan 12 '16 at 17:41
...
One-liner to take some properties from object in ES 6
...e for said function.
Like so:
const orig = {
id: 123456789,
name: 'test',
description: '…',
url: 'https://…',
};
const filtered = ['id', 'name'].reduce((result, key) => { result[key] = orig[key]; return result; }, {});
console.log(filtered); // Object {id: 123456789, name: "test...
When is it better to use String.Format vs string concatenation?
...piler is smart enough to convert this piece of code:
public static string Test(string s1, int i2, int i3, int i4,
string s5, string s6, float f7, float f8)
{
return s1 + " " + i2 + i3 + i4 + " ddd " + s5 + s6 + f7 + f8;
}
to this:
public static string Test(string s1, int i2, int i3,...
PHP PDO: charset, set names?
...all three:
<?php
define('DB_HOST', 'localhost');
define('DB_SCHEMA', 'test');
define('DB_USER', 'test');
define('DB_PASSWORD', 'test');
define('DB_ENCODING', 'utf8');
$dsn = 'mysql:host=' . DB_HOST . ';dbname=' . DB_SCHEMA;
$options = array(
PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,...
How to set host_key_checking=false in ansible inventory file?
...re by isolating this insecure setting to the hosts required for this (e.g. test systems, local development machines).
What you can do at the inventory level is add
ansible_ssh_common_args='-o StrictHostKeyChecking=no'
or
ansible_ssh_extra_args='-o StrictHostKeyChecking=no'
to your host defini...
How can I check if an ip is in a network in Python?
...x x86. I haven't really given any thought to endianess issues, but I have tested it against the "ipaddr" module using over 200K IP addresses tested against 8 different network strings, and the results of ipaddr are the same as this code.
def addressInNetwork(ip, net):
import socket,struct
ip...
In C++, is it still bad practice to return a vector from a function?
...
@SigTerm: I work on "actual-case scenario". I test what the compiler does and work with that. There is no "may work slower". It simply does not work slower because the compiler DOES implement RVO, whether the standard requires it or not. There are no ifs, buts, or maybes...
Detecting an “invalid date” Date instance in JavaScript
...
This test would fail in Chrome. For example, Date.parse('AAA-0001') in Chrome gives me a number.
– Nick
Jun 17 '19 at 4:28
...