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how to get the current working directory's absolute path from irb
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521
Dir.pwd seems to do the trick.
http://ruby-doc.org/core/Dir.html#method-c-pwd
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How to zero pad a sequence of integers in bash so that all have the same width?
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13 Answers
13
Active
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Find duplicate lines in a file and count how many time each line was duplicated?
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811
Assuming there is one number per line:
sort <file> | uniq -c
You can use the more verb...
Rails formatting date
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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...
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}...
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...
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 ...
jQuery: Get selected element tag name
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1048
You can call .prop("tagName"). Examples:
jQuery("<a>").prop("tagName"); //==> "A"
j...
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?
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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...