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Passing variables in remote ssh command
...le to process, etc.) would look like:
$ ssh user@somehost.com 'read foo' <<< "$foo"
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When I catch an exception, how do I get the type, file, and line number?
...Traceback (most recent call last):
File "/path/to/file.py", line 51, in <module>
print(4/0)
ZeroDivisionError: division by zero
Process finished with exit code 0
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In WPF, what are the differences between the x:Name and Name attributes?
...DN) So, it's a designer-generated field, which has internal access by default.
Name is the existing string property of a FrameworkElement, listed as any other wpf element property in the form of a xaml attribute.
As a consequence, this also means x:Name can be used on a wider range of objects. Thi...
What is the fastest substring search algorithm?
...rape a site like google or wikipedia, then strip the html from all the result pages. For a search site, type in a word then use one of the suggested search phrases. Choose a few different languages, if applicable. Using web pages, all the texts would be short to medium, so merge enough pages to g...
Is it possible to iterate through JSONArray? [duplicate]
...with an iterator.
For org.json.JSONArray, you can do:
for (int i = 0; i < arr.length(); i++) {
arr.getJSONObject(i);
}
For javax.json.JsonArray, you can do:
for (int i = 0; i < arr.size(); i++) {
arr.getJsonObject(i);
}
...
Pass column name in data.table using variable [duplicate]
...ay, because the quote()-ed string will be evaluated inside the DT[]
temp <- quote(x)
DT[ , eval(temp)]
# [1] "b" "b" "b" "a" "a"
With a single column name, the result is a vector. If you want a data.table result, or several columns, use list form
temp <- quote(list(x, v))
DT[ , eval(temp)]...
Generating a Random Number between 1 and 10 Java [duplicate]
... out try something like this.
Random rn = new Random();
for(int i =0; i < 100; i++)
{
int answer = rn.nextInt(10) + 1;
System.out.println(answer);
}
Also if you change the number in parenthesis it will create a random number from 0 to that number -1 (unless you add one of course like ...
ADO方式读取EXCEL数据存在致命BUG!!!!! - 更多技术 - 清泛网 - 专注C/C++及内核技术
...“.”则会变成“#”！！！！
比如工作表名称为：TEK-V1.0LT #7-30
通过这种ADO方式获取的名称却变为：TEK-V1#0LT #7-30
因此，在此郑重提醒各位，ADO读取excel数据方式有风险，使用需谨慎！
ADO 读取 EXCEL
BLE通信数据不能超过20字节？ - 创客硬件开发 - 清泛IT社区，为创新赋能！
... 块上，请求相同的 192 字节；
就我而言，当我必须发送< 23字节的有效负载时，我可以像很多示例一样使用调用.WriteStrings，但如果我需要发送超过23字节，我将使用调用.WriteBytes
引用: After a lot of hours I found the problem in my app....
cn.fun123.ClientSocketAI2Ext 中文网升级版 Socket客户端拓展，TCP通信拓...
...由于此拓展编译自最新的平台源码，经过测试，AI伴侣 < 2.67 或安卓 < 13的平台不支持，不兼容拓展的报错模板。以下是某社区版（v2.65）测试结果，不兼容，App直接崩溃：
经测试，MIT 原版测试也是正常的。