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App Inventor 2 低功耗蓝牙(BLE) 硬件接入、数据通信及IO控制 · App Inventor 2 中文网
...% auto no-repeat; } /*手机版：反馈浮动按钮收小*/ @media screen and (max-width: 700px) { .feedback-pop { font-size: 13px; line-height: 14px; padding: 10px 7px; } .feedback-pop .feedback-img { width: 20px; height: 20px; margin-bottom: 3px; } } 文档反馈 切...
Javascript: How to generate formatted easy-to-read JSON straight from an object? [duplicate]
...w to generate JSON from an object using JSON.stringify, or in my case the handy jquery-json from google code ( https://github.com/krinkle/jquery-json ).
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Python: Fetch first 10 results from a list [duplicate]
...out these type of operations you might find this tutorial on lists helpful and the link @DarenThomas provided Explain Python's slice notation - thanks Daren)
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How do I zip two arrays in JavaScript? [duplicate]
...t zip = (arr1, arr2) => arr1.map((k, i) => [k, arr2[i]]); is concise and elegant
– javadba
Jun 1 at 3:01
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What does %>% mean in R [duplicate]
... not part of base R, but is in fact defined by the package magrittr (CRAN) and is heavily used by dplyr (CRAN).
It works like a pipe, hence the reference to Magritte's famous painting The Treachery of Images.
What the function does is to pass the left hand side of the operator to the first argumen...
App Inventor 2 调用大模型API教程 - 阿里云百练等LLM集成 · App Inventor 2 中文网
... = Web1.JsonTextEncode(global_chatHistory) // instead of listToJson, use standard Web1.JsonTextEncode if possible, or just ignore since compiler doesn't check functions
var requestBody = join("{\"model\":\"qwen-plus\",\"messages\":", messagesJson, "}")
Web1.RequestHeaders = createList(createL...
社交应用组件 · App Inventor 2 中文网
... URI
电话号码：联系人的主要电话号码（在更高版本的 Android 版本上）
电话号码列表：联系人电话号码列表（在更高版本的 Android 版本上）
图片：包含联系人图片的文件的名称，可用作 图像.图片属性值 或 图像精灵.图片 ...
Check whether or not the current thread is the main thread
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There are methods like
- (BOOL)isMainThread
+ (BOOL)isMainThread
and + (NSThread *)mainThread
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How to show changed file name only with git log? [duplicate]
...rs find it useful:
git diff --name-only
You can also couple this with standard commit pointers to see what has changed since a particular commit:
git diff --name-only HEAD~3
git diff --name-only develop
git diff --name-only 5890e37..ebbf4c0
This succinctly provides file names only which is gre...
【解决】Component does not specify permissionConstraints · App Inventor 2 中文网
...数量是有上限的。
创始人回复
Java 和 Android 的内部类表示大多是 16 位，因此许多东西（例如方法）的长度就单个指令而言往往是 65535 字节（2^16 - 1）。在 App Inventor 级别，一个块可能会转化为许多指令。一些...