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Bad value X-UA-Compatible for attribute http-equiv on element meta
...tion that states: "The following proposed extensions do not yet conform to all the registration requirements in the HTML spec and are therefore not yet allowed in valid documents." So the validator is correct to reject this value.
...
CORS Access-Control-Allow-Headers wildcard being ignored?
...
Support for wildcards in the Access-Control-Allow-Headers header was added to the living standard only in May 2016, so it may not be supported by all browsers. On browser which don't implement this yet, it must be an exact match: https://www.w3.org/TR/2014/REC-cors-201...
How are parameters sent in an HTTP POST request?
...nt in the request body, in the format that the content type specifies.
Usually the content type is application/x-www-form-urlencoded, so the request body uses the same format as the query string:
parameter=value&also=another
When you use a file upload in the form, you use the multipart/form-...
Recursion or Iteration?
...n if the recursive function is tail recursive (the last line is recursive call). Tail recursion should be recognized by the compiler and optimized to its iterative counterpart (while maintaining the concise, clear implementation you have in your code).
I would write the algorithm in the way that m...
How do getters and setters work?
I'm from the php world. Could you explain what getters and setters are and could give you some examples?
6 Answers
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Passing parameters to a Bash function
...n_name {
command...
}
or
function_name () {
command...
}
To call a function with arguments:
function_name "$arg1" "$arg2"
The function refers to passed arguments by their position (not by name), that is $1, $2, and so forth. $0 is the name of the script itself.
Example:
function_n...
App Inventor 2中文网最新上线的AI助手功能叫什么？有什么核心价值？ - AI2...
...个配置组件属性
3. 连接代码块实现逻辑
4. 反复测试和调试
**AI2Claw开发流程**：
1. 用中文描述需求
2. AI自动生成界面和代码
3. 实时预览和调整
4. 一键部署和分享
### 2. 具体改进示例
**场景：创建登录界面**
传统方...
Using Default Arguments in a Function
...= "some other value";
}
code here!
}
This way, you can make a call like foo('blah', null, 'non-default y value'); and have it work as you want, where the second parameter $x still gets its default value.
With this method, passing a null value means you want the default value for one par...
What are the differences between utf8_general_ci and utf8_unicode_ci? [duplicate]
...tf8_unicode_ci uses the standard Unicode Collation Algorithm, supports so called expansions and ligatures, for example:
German letter ß (U+00DF LETTER SHARP S) is sorted near "ss"
Letter Π(U+0152 LATIN CAPITAL LIGATURE OE) is sorted near "OE".
utf8_general_ci does not support expansions/liga...
How do I list all cron jobs for all users?
Is there a command or an existing script that will let me view all of a *NIX system's scheduled cron jobs at once? I'd like it to include all of the user crontabs, as well as /etc/crontab , and whatever's in /etc/cron.d . It would also be nice to see the specific commands run by run-parts in /e...