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How to create GUID / UUID?
...bs will just come to this answer and copy the first thing they see without reading the rest. In reality you can't reliably generate UUIDs from the Math.random API and it would be dangerous to rely on that.
– hPNJ7MHTyg
Aug 5 at 11:16
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Why is TypedReference behind the scenes? It's so fast and safe… almost magical!
...al... religious programmers always abiding by good practices, please don't read it. :)
3 Answers
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App Inventor 2 SQLite 拓展：超流行兼容主流SQL语法的迷你本地数据库引擎...
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导入/导出整个数据库
常见 CRUD（ 增加(Create)、读取(Read)、更新(Update)和删除(Delete) ） 操作方法
数据操作方法的内联和异步版本
可以使用参数化 SQL 语句（防止 SQL 注入）
查询结果以正确列表的形式返回
数据库生命周...
How do I fix the Visual Studio compile error, “mismatch between processor architecture”?
... to this solution that I've seen is in the Microsoft .NET Framework 4.5 RC Readme file. Strangely it was removed from the RTM Readme file.
– JohnC
Jul 10 '13 at 15:51
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How many GCC optimization levels are there?
...optimize = 255;
so that the optimization level is truncated to 255. While reading opth-gen.awk I had come across:
# All of the optimization switches gathered together so they can be saved and restored.
# This will allow attribute((cold)) to turn on space optimization.
and on the generated options....
How can prepared statements protect from SQL injection attacks?
... the effect is the same. PREPARE creates a fixed named statement that is already parsed (i.e. the statement is not going to change any more regardless of the input) while EXECUTE will run the named statement binding the parameters. Since PREPARE only has session duration, it really looks like it is...
How do function pointers in C work?
...of the text segment (along with code for functions).
The text segment has Read+Exec permission, so casting string literals to function pointers works without needing mprotect() or VirtualProtect() system calls like you'd need for dynamically allocated memory. (Or gcc -z execstack links the program...
How to use git bisect?
I have read some articles saying that git bisect is awesome. However, I'm not a native speaker and I can't understand why it's awesome.
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CSS: fixed position on x-axis but not y?
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This is an old thread but CSS3 has a solution.
position: sticky;
Have a look at this blog post.
Demonstration:
And this documentation.
share
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JavaScript equivalent of jQuery's extend method
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You can use the ECMA 2018 spread operator in object literals...
var config = {key1: value1};
var default = {key1: default1, key2: default2, key 3: default 3};
var settings = {...default, ...config}
//resulting properties of settings:
settings = {key1...