大约有 40,000 项符合查询结果（耗时：0.0754秒） [XML]
How to test an SQL Update statement before running it?
...
What about Transactions? They have the ROLLBACK-Feature.
@see https://dev.mysql.com/doc/refman/5.0/en/commit.html
For example:
START TRANSACTION;
SELECT * FROM nicetable WHERE somthing=1;
UPDATE nicetable SET nicefield='VALUE' WHERE somthing=1;
SELECT * FROM nicetable WHERE somthing=1...
How to load images dynamically (or lazily) when users scrolls them into view
I've noticed this in numerous "modern" websites (e.g. facebook and google image search) where the images below the fold load only when user scrolls down the page enough to bring them inside the visible viewport region ( upon view source, the page shows X number of <img> tags but they are not f...
What does this symbol mean in JavaScript?
... Three dots: spread syntax; rest parameters
(...args) => {} — https://stackoverflow.com/questions/42184674/what-is-the-meaning-of-args-three-dots-in-a-function-definition
[...iter] — https://stackoverflow.com/questions/33890525/javascript-es6-array-feature-data-0-spread-operator
{....
Why extend the Android Application class?
... lot of the stuff that confuses coders comes from that pretty much all the google added "helpers" are made as if the activities ran on separate computers.
– Lassi Kinnunen
Apr 19 '16 at 22:22
...
Getting rid of \n when using .readlines() [duplicate]
...ag this as a potential example of gronostaj's comment as this is the first Google result for stripping \n with readlines. Your point is understood though!
– duhaime
Jun 4 '18 at 13:27
...
Disable ActiveRecord for Rails 4
...
Since this is still the first hit when searching Google for disabling active record for Rails 5, I'll add this here:
For Rails 5
Do all the steps in @mechanicalfish answer, but also remove the line
Rails.application.config.active_record.belongs_to_required_by_default = ...
How to resolve “Waiting for Debugger” message?
...
Thanks - this was exactly my problem - Android N - Google Pixel - IntelliJ
– bsautner
Jan 3 '17 at 17:17
2
...
Is it safe to use Project Lombok? [closed]
...that generating javadoc is technically possible. Please participate in the google group if you've any bright ideas how to implement it. I mean, just generating a standard text is not that useful. Like getFoo, returns foo, setFoo sets the foo? How is that going to help?
– Roel S...
BLE（二）信道&数据包&协议栈格式 - 创客硬件开发 - 清泛IT社区，...
文章源自：https://www.gandalf.site/2018/11/ble_23.html
参考低功耗蓝牙（BLE）安全初探
0x1 信道BLE的物理通道即“频道，分别是‘f=2402+k*2 MHz, k=0, … ,39’，带宽为2MHz”的40个RF Channel。
其中，有3个信道是advertising channel（广播通道）...
How to detect if a property exists on an ExpandoObject?
...n if the key does not exist, always return true
return true;
}
. . .
https://github.com/ASP-NET-MVC/aspnetwebstack/blob/master/src/System.Web.Mvc/DynamicViewDataDictionary.cs
You can see it being tied into MVC Views here, in MVC ViewPage:
http://aspnetwebstack.codeplex.com/SourceControl/late...