大约有 47,000 项符合查询结果（耗时：0.0632秒） [XML]
How to determine if a record is just created or updated in after_save
...ay to determine whether the record is a newly created record or an old one from update?
8 Answers
...
Getting parts of a URL (Regex)
... Hi Dve, I've improved it a little more to extract example.com from urls like http://www.example.com:8080/.... Here goes: ^((http[s]?|ftp):\/\/)?\/?([^\/\.]+\.)*?([^\/\.]+\.[^:\/\s\.]{2,3}(\.[^:\/\s\.]{2,3})?(:\d+)?)($|\/)([^#?\s]+)?(.*?)?(#[\w\-]+)?$
– mnacos
...
receiving error: 'Error: SSL Error: SELF_SIGNED_CERT_IN_CHAIN' while using npm
...
For now I just switched registry URL from https to http. Like this:
npm config set registry="http://registry.npmjs.org/"
share
|
improve this answer
...
Is it bad practice to make a setter return “this”?
...
well, generally you don't return anything from a setter anyway, by convention.
– Ken Liu
Aug 28 '09 at 4:39
17
...
Prevent Caching in ASP.NET MVC for specific actions using an attribute
...attribute on the class of the base class that you inherit your controllers from (if you have one) like we have here:
[NoCache]
public class ControllerBase : Controller, IControllerBase
You can also decorate some of the actions with this attribute if you need them to be non-cacheable, instead of d...
Null or default comparison of generic argument in C#
...
I can't decide if this answer pushed me away from or closer to insanity. +1
– Steven Liekens
Apr 18 '17 at 15:54
2
...
How do I create a custom Error in JavaScript?
...lly. Even the one with 107 ups! The real answer is here guys:
Inheriting from the Error object - where is the message property?
TL;DR:
A. The reason message isn't being set is that Error is a function that returns a new Error object and does not manipulate this in any way.
B. The way to do this...
How can I do test setup using the testing package in Go
...
How are you supposed to pass context from the setup function to the tests without using global variables ? For example if mySetupFunction() creates a temporary directory to perform testing in (with a unique, random name), how do the tests know the name of the di...
How to convert string to boolean php
...lean true unless they have a value that's considered "empty" by PHP (taken from the documentation for empty):
"" (an empty string);
"0" (0 as a string)
If you need to set a boolean based on the text value of a string, then you'll need to check for the presence or otherwise of that value.
$test...
How to use NSURLConnection to connect with SSL for an untrusted cert?
...l need to add the below code to your NSURLConnection delegate, it's copied from Apple sample code AdvancedURLConnections, and you need to add two files(Credentials.h, Credentials.m) from apple sample code to your projects.
- (BOOL)connection:(NSURLConnection *)connection canAuthenticateAgainstProte...