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Max length for client ip address [duplicate]
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I would avoid mixing IPv4 and IPv6 in the same filed of a database for "a while." IPv4 is still the default standard, and will continue to be used for years to come. In legacy applications I have worked with, when it became necessary t...
Check if a value is in an array (C#)
... question is about arrays of strings. The mentioned routines are not to be mixed with the .Contains method of single strings.
I would like to add an extending answer referring to different C# versions and because of two reasons:
The accepted answer requires Linq which is perfectly idiomatic C# whil...
How can I find non-ASCII characters in MySQL?
... that don't have any ascii characters at all, so it will miss those with a mix of ascii and non-ascii characters. The answer below from zende checks for one or more non-ascii characters. This helped me for the most part SELECT * FROM tbl WHERE colname NOT REGEXP '^[A-Za-z0-9\.,@&\(\) \-]*$';
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Reverting to a specific commit based on commit id with Git? [duplicate]
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@prosseek the default is actually mixed. --mixed Resets the index but not the working tree (i.e., the changed files are preserved but not marked for commit) and reports what has not been updated. This is the default action. See kernel.org/pub/software/scm/g...
Using PHP with Socket.io
Is it possible to use Sockets.io on the client side and communicate with a PHP based application on the server? Does PHP even support such a 'long-lived connection' way of writing code?
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What is an example of the simplest possible Socket.io example?
So, I have been trying to understand Socket.io lately, but I am not a supergreat programmer, and almost every example I can find on the web (believe me I have looked for hours and hours), has extra stuff that complicates things. A lot of the examples do a bunch of things that confuse me, or connect ...
Detect if device is iOS
I'm wondering if it's possible to detect whether a browser is running on iOS, similar to how you can feature detect with Modernizr (although this is obviously device detection rather than feature detection).
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2026 新年第一篇：即将全面支持苹果iOS App编译生成，纯血鸿蒙计划中，编译...
目前AppInventor2苹果iOS方案已经验证ok，即将发布上线。
但是 iOS的拓展和安卓的完全不通用，目前尚不支持有拓展的aia源码，AI伴侣测试和ipa编译都不支持带拓展的源码。
但是我们会逐步推进最常见的拓展适配iOS，比如 Bluetoo...
How to check iOS version?
I want to check if the iOS version of the device is greater than 3.1.3
I tried things like:
37 Answers
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Patterns for handling batch operations in REST web services?
...do is basically grouping different requests in one Content-Type: multipart/mixed request, with each individual complete request separated by some defined delimiter. Headers and query parameter of the batch request are inherited to the individual requests (i.e. Authorization: Bearer some_token) unles...