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Fastest way to duplicate an array in JavaScript - slice vs. 'for' loop
...
Easiest way to deep clone Array or Object:
var dup_array = JSON.parse(JSON.stringify(original_array))
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Linux C/C++程序常用的调试手段及异常排查总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...的编码规范去做，至于缩进、换行、注释等，可以在经常使用的ide上安装相关格式化插件）
是否涉及动态资源
是否有申请动态内存，文件描述符等，执行完是否有正确释放？指针等操作是否规范？
性能如何
是否有一...
Django Rest Framework File Upload
...e is no straight fwd way you can get it to work. There is an open issue in json api specs for this. One possibility i have seen is to use multipart/related as shown here, but i think its very hard to implement it in drf.
Finally what i had implemented was to send the request as formdata. You would ...
App Inventor 2 低功耗蓝牙(BLE) 硬件接入、数据通信及IO控制 - App Invent...
...的串口工具软件非常之多，查看原文链接下载。请注意：使用串口工具软件之前，一般需要安装硬件厂商提供的驱动程序。
电脑端打开串口：
UART上指示灯会开启，说明串口已打开：
测试与BLE硬件通信（数据透传）手机App端...
How do I integrate Ajax with Django applications?
...for jQuery, they are great and will put you on the right path.
When to use JSON?. You're going to see a lot of examples where the data sent by the Django views is in JSON. I didn't go into detail on that, because it isn't important how to do it (there are plenty of explanations abound) and a lot mor...
CDC:DrawText 多行显示文本（文本自动换行） - C++ UI - 清泛IT社区，为创新赋能！
...; DT_CALCRECT：决定矩形的宽和高。如果正文有多行，DrawText使用lpRect定义的矩形的宽度，并扩展矩形的底训以容纳正文的最后一行，如果正文只有一行，则DrawText改变矩形的右边界，以容纳下正文行的最后一个字符，上述任何一种...
How do I get a YouTube video thumbnail from the YouTube API?
...youtube/v3/videos?key=YOUR_API_KEY&part=snippet&id=T0Jqdjbed40");
$json = json_decode($data);
var_dump($json->items[0]->snippet->thumbnails);
Output
object(stdClass)#5 (5) {
["default"]=>
object(stdClass)#6 (3) {
["url"]=>
string(46) "https://i.ytimg.com/vi/T0Jq...
How to process POST data in Node.js?
... {
method: 'POST',
headers: {
'Content-Type': 'application/json'
},
body: JSON.stringify({
user: {
name: "John",
email: "john@example.com"
}
})
});
Node.js: (since Express v4.16.0)
// Parse URL-encoded bodies (as sent by HTML for...
VIP会员中心 · App Inventor 2 中文网，少儿编程陪伴者
...教程如下： 《App Inventor 2 文本块使用方法 - 打字机效果（1）》 《App Inventor 2 文本块使用方法2 - 打字机效果（2）》 《App Inventor 2 计时器+效果实现 - 打字机效果（3）》 ...
移动前端开发之viewport的深入理解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...白了viewport的概念以及弄清楚了跟viewport有关的meta标签的使用，才能更好地让我们的网页适配或响应各种不同分辨率的移动设备。
一、viewport的概念
通俗的讲，移动设备上的viewport就是设备的屏幕上能用来显示我们的网页的那...