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Passing arguments to an interactive program non-interactively
...readable)
your_program << ANSWERS
yes
no
maybe
ANSWERS
use a here string
your_program <<< $'yes\nno\nmaybe\n'
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Rename Files and Directories (Add Prefix)
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rename '' <prefix> *
This finds the first occurrence of the empty string (which is found immediately) and then replaces that occurrence with your prefix, then glues on the rest of the file name to the end of that. Done.
For suffixes, you need to use the perl version or use find.
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Print all day-dates between two dates [duplicate]
... you can't join dates, so if you want to use join, you need to
# cast to a string in the list comprehension:
ddd = [str(d1 + timedelta(days=x)) for x in range((d2-d1).days + 1)]
# now you can join
print "\n".join(ddd)
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Find the number of columns in a table
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Using JDBC in Java:
String quer="SELECT * FROM sample2 where 1=2";
Statement st=con.createStatement();
ResultSet rs=st.executeQuery(quer);
ResultSetMetaData rsmd = rs.getMetaData();
int NumOfCol=0;
NumOfCol=rsmd.getColum...
How is the 'use strict' statement interpreted in Node.js? [duplicate]
...n and Generator constructors is strict mode code if the last argument is a String that when processed is a FunctionBody that begins with a Directive Prologue that contains a Use Strict Directive.
Additionally if you are lost on what features are supported by your current version of Node.js, thi...
Eclipse RCP Plug-in开发自学教程（Eclipse3.6） - 文档下载 - 清泛网 - ...
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17.1.1 Externalize Strings ............................................................................................................169
17.1.2 中文属性文件 .................................................................................
Get selected option from select element
...y there. So you need to fetch the text you want, then put it in the .text(string) method on the object you want to set, like I have above.
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JavaScript validation for empty input field
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An input field can have whitespaces, we want to prevent that.
Use String.prototype.trim():
function isEmpty(str) {
return !str.trim().length;
}
Example:
const isEmpty = str => !str.trim().length;
document.getElementById("name").addEventListener("input", function() {
if(...
Memcache Vs. Memcached [duplicate]
...c difference while storing value. Memcache mostly considers every value as string whereas Memcached stores it value's original type. Thumbs up for your answer !
– NullPointer
Jun 17 '15 at 2:38
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C++ stl stack/queue 的使用方法 - C/C++ - 清泛网 - 专注C/C++及内核技术
...ue。
定义stack 对象的示例代码如下：
stack<int> s1;
stack<string> s2;
stack 的基本操作有：
入栈，如例：s.push(x);
出栈，如例：s.pop(); 注意，出栈操作只是删除栈顶元素，并不返回该元素，使用top()访问元素。
访问栈顶，如例：s....