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How can I delete a newline if it is the last character in a file?
...see http://pubs.opengroup.org/onlinepubs/009696799/utilities/echo.html and https://unix.stackexchange.com/a/65819)
A guide to the other answers:
If Perl is available, go for the accepted answer - it is simple and memory-efficient (doesn't read the whole input file at once).
Otherwise, consider...
How to read from standard input in the console?
...y explains why you should use Scanner instead of bufio.Reader's ReadLine.
https://twitter.com/davecheney/status/604837853344989184?lang=en
Here is the code snippet answer for your question
package main
import (
"bufio"
"fmt"
"os"
)
/*
Three ways of taking input
1. fmt.Scanln(&am...
How can I stop .gitignore from appearing in the list of untracked files?
... does not show up in "git status" since it's in the .git folder.
See also https://help.github.com/articles/ignoring-files
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Keep overflow div scrolled to bottom unless user scrolls up
...is that the markup has to be in reverse order.
Here is a working example. https://codepen.io/jimbol/pen/YVJzBg
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Font Awesome icon inside text input element
...-left: 17px;
}
.input-wrapper{
position: relative;
}
<link href="https://netdna.bootstrapcdn.com/font-awesome/4.0.3/css/font-awesome.css" rel="stylesheet"/>
<div class="input-wrapper">
<input id="stuff">
<label for="stuff" class="fa fa-user input-icon"></labe...
How can I pass a parameter to a setTimeout() callback?
...o = "Hello World";
setTimeout(alert, 1000, hello);
More details:
https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers.setTimeout
http://arguments.callee.info/2008/11/10/passing-arguments-to-settimeout-and-setinterval/
...
dispatch_after - GCD in Swift?
...ction.
EDIT 2:
In Swift 3, there will be new wrappers for GCD. See here: https://github.com/apple/swift-evolution/blob/master/proposals/0088-libdispatch-for-swift3.md
The original example would be written as follows in Swift 3:
let deadlineTime = DispatchTime.now() + .seconds(1)
DispatchQueue.ma...
In git, is there a simple way of introducing an unrelated branch to a repository?
...ed branch called gh-pages.
The pretty steps are given and explained here:
https://help.github.com/articles/creating-project-pages-manually
Basically the git commands to set this up are as follows:
git checkout --orphan gh-pages (create a parentless branch called gh-pages on your repo)
git rm -rf...
How to style dt and dd so they are on the same line?
..., grid layout enables an author to align elements into columns and rows.
https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Grid_Layout
To change the column sizes, take a look at the grid-template-columns property.
dl {
display: grid;
grid-template-columns: max-content auto;
}
d...
No route matches “/users/sign_out” devise rails 3
...avascript file. Make sure you are using the latest version of jquery-ujs : https://github.com/rails/jquery-ujs and the last files available :
rails generate jquery:install
You should not have any more rails.js file. If you do, you're probably out-of-date.
Make sure also this file is loaded with d...