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Find duplicate lines in a file and count how many time each line was duplicated?
...
811
Assuming there is one number per line:
sort <file> | uniq -c
You can use the more verb...
jQuery: Get selected element tag name
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1048
You can call .prop("tagName"). Examples:
jQuery("<a>").prop("tagName"); //==> "A"
j...
How do I add a delay in a JavaScript loop?
... any delay.
You may want to use something like this instead:
var i = 1; // set your counter to 1
function myLoop() { // create a loop function
setTimeout(function() { // call a 3s setTimeout when the loop is called
console.log('hello'); // your code ...
Rails formatting date
...
Use
Model.created_at.strftime("%FT%T")
where,
%F - The ISO 8601 date format (%Y-%m-%d)
%T - 24-hour time (%H:%M:%S)
Following are some of the frequently used useful list of Date and Time formats that you could specify in strftime method:
Date (Year, Month, Day):
%Y - Year with cent...
Changing java platform on which netbeans runs
I am using Netbeans 6.7. I had first installed Java 1.5 before installing Netbeans. When i installed Netbeans it took Java 1.5 as the default version. Then i installed Java 1.6 on my machine. I need to change the default JDK of my netbeans to 1.6 not only to a specific project but to the whole Netbe...
Redis消息通知系统的实现 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...xtends Redis
{
const POSITION_FIRST = 0;
const POSITION_LAST = -1;
public function zPop($zset)
{
return $this->zsetPop($zset, self::POSITION_FIRST);
}
public function zRevPop($zset)
{
return $this->zsetPop($zset, self::POSITION_LAST);
}
...
What really is a deque in STL?
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190
A deque is somewhat recursively defined: internally it maintains a double-ended queue of chunk...
Very simple log4j2 XML configuration file using Console and File appender
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<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="INFO">
<Appenders>
<Console name="Console" target="SYSTEM_OUT">
<PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36}...
Rolling or sliding window iterator?
...hon iteration can be considered a special case, where the window length is 1. I'm currently using the following code. Does anyone have a more Pythonic, less verbose, or more efficient method for doing this?
...
How can I apply a border only inside a table?
...is:
table {
border-collapse: collapse;
}
table td, table th {
border: 1px solid black;
}
table tr:first-child th {
border-top: 0;
}
table tr:last-child td {
border-bottom: 0;
}
table tr td:first-child,
table tr th:first-child {
border-left: 0;
}
table tr td:last-child,
table tr th:last-ch...