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Getting output of system() calls in Ruby
If I call a command using Kernel#system in Ruby, how do I get its output?
15 Answers
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How to change legend title in ggplot
I have the following plot like below.
It was created with this command:
12 Answers
12...
深入浅出计算机字符集编码 - C/C++ - 清泛网 - 专注C/C++及内核技术
...编码方式统一为UTF-8，后台代码（包括UT测试代码）以EUC_JP编码，要求前台输入日文半角片假名后台通过正则表达式能够验证通过，正则表达式为“^(([\x20-\x7e])|(\x8e[\xa6-\xdf])){1,32}$“。现在问题是UT测试代码能够通过，而前台输入...
Javascript Equivalent to C# LINQ Select
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Yes, Array.map() or $.map() does the same thing.
//array.map:
var ids = this.fruits.map(function(v){
return v.Id;
});
//jQuery.map:
var ids2 = $.map(this.fruits, function (v){
return v.Id;
});
console.log(ids, ids2);
http://j...
Generate .pem file used to set up Apple Push Notifications
I tried and tried to generate a .pem file, every time generating certificates from the client's account and then generating the .pem file using the terminal, but it's of no use. Can anyone give a step-by-step procedure?
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.toArray(new MyClass[0]) or .toArray(new MyClass[myList.size()])?
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Counterintuitively, the fastest version, on Hotspot 8, is:
MyClass[] arr = myList.toArray(new MyClass[0]);
I have run a micro benchmark using jmh the results and code are below, showing that the version with an empty array consistently outperforms the version with a pre...
commandButton/commandLink/ajax action/listener method not invoked or input value not set/updated
...ion , actionListener or listener method associated with the tag are simply not being invoked. Or, the bean properties are not updated with submitted UIInput values.
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Why does this method print 4?
I was wondering what happens when you try to catch an StackOverflowError and came up with the following method:
7 Answers
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Block comments in html.erb templates in rails
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I wouldn't count as a solution, but perhaps enclosing the chunk between an
<% if false %>
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<% end %>
or if you feel a little dirty, create a helper that simply outputs nothing.
I've never needed it, but I'm stumbled there seems to be no ou...
TypeError: Missing 1 required positional argument: 'self'
I am new to python and have hit a wall. I followed several tutorials but cant get past the error:
6 Answers
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