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Hidden features of Scala
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As a illustration of the use consider the following source:
class A { "xx".r }
Compiling this with scalac -Xprint:typer outputs:
package <empty> {
class A extends java.lang.Object with ScalaObject {
def this(): A = {
A.super.this();
()
};
scala.this.Predef.augm...
java.lang.NoClassDefFoundError: Could not initialize class XXX
...and to the maven command, and make every task go to the same container.
-Dxxx.version=xxxxx #sorry can't post more
Maybe you have already solved this problem, but still hope it will help others who meet the same problem.
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Where is my .vimrc file?
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@Idigas I was typing :echo(xxx) on my command window but I realized now you meant to type this into the vim editor. However, even though :e xxx works, the :echo(xxx) doesn't. It says E121 Undefined Variable: xxx E15: Invalid Expression : ($xxx)
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Best practice for creating millions of small temporary objects
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If you have experience using these option: -XX:+PrintEscapeAnalysis and -XX:+PrintEliminateAllocations. That would be great to share. Because I don't, saying honestly.
– Mikhail
May 8 '13 at 8:13
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Adding iOS UITableView HeaderView (not section header)
... // ...
UIView *headerView = [[UIView alloc] initWithFrame:CGRectMake(XXX, YYY, XXX, YYY)];
UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(XXX, YYY, XXX, YYY)];
[headerView addSubview:imageView];
UILabel *labelView = [[UILabel alloc] initWithFrame:CGRectMa...
css 设置行间距，段落行高的方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
css 设置行间距，段落行高的方法CSS行间距 line-height:xx px;下面我们讲述一下CSS的文本属性，还是先来看一下文本属性的详细列表：属性属性含义属性值Word-spacing定义...CSS行间距 line-height:xx px;
下面我们讲述一下CSS的文本属性，...
Google breakpad stackwalker无法加载符号 - 更多技术 - 清泛网 - 专注C/C++及内核技术
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if __name__ == "__main__":
main(sys.argv[1:])
./gen_symbols.py xx1.so xx2.so
这样就可以自动生成了。
参考：https://stackoverflow.com/questions/23537187/stackwalker-loads-all-symbol-files-but-still-doesnt-symbolicate-anything
Linux Shell脚本参数的获取方法 - 脚本技术 - 清泛IT社区，为创新赋能！
...$# 参数个数（脚本名除外）
$? 取上个命令退出码（exit xx, 函数return xx）一般0成功,1失败
#!/bin/sh
echo 'file name:' $0
echo 'param num: ' $#
if [ $# -gt 1 ]; then
echo 'the second param:' $2
fi
复制代码./param.sh
file name: ./param.sh
param num: 0
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StringIO in Python3
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import numpy as np
from StringIO import StringIO
data = "1, abc , 2\n 3, xxx, 4"
print type(data)
"""
<type 'str'>
"""
print '\n', np.genfromtxt(StringIO(data), delimiter=",", dtype="|S3", autostrip=True)
"""
[['1' 'abc' '2']
['3' 'xxx' '4']]
"""
print '\n', type(data)
"""
<type 'str'...
LINQ to Entities does not recognize the method
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I got the same error in this code:
var articulos_en_almacen = xx.IV00102.Where(iv => alm_x_suc.Exists(axs => axs.almacen == iv.LOCNCODE.Trim())).Select(iv => iv.ITEMNMBR.Trim()).ToList();
this was the exactly error:
System.NotSupportedException: 'LINQ to Entities does not...