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Preview an image before it is uploaded
...
}
reader.readAsDataURL(input.files[0]); // convert to base64 string
}
}
$("#imgInp").change(function() {
readURL(this);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form runat="server">
<input type...
How to install the current version of Go in Ubuntu Precise
...n
which outputs in my case (Ubuntu precise)
go version go1.1.1 linux/amd64
From there just export the settings you're gonna need to bash_rc or equivalent:
export GOROOT=/usr/lib/go
export GOBIN=/usr/bin/go
share
...
npm throws error without sudo
...s issue in your home directory. To reclaim ownership of the .npm directory execute:
sudo chown -R $(whoami) ~/.npm
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Image comparison - fast algorithm
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Kyle SimekKyle Simek
9,14833 gold badges2323 silver badges3232 bronze badges
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Can a shell script set environment variables of the calling shell? [duplicate]
... if you're in the same directory as the script:
. set_env_vars.sh
These execute the script under the current shell instead of loading another one (which is what would happen if you did ./set_env_vars.sh). Because it runs in the same shell, the environmental variables you set will be available whe...
What is mod_php?
... CGI means that you basically tell your web server the location of the PHP executable file, and the server runs that executable, giving it the script you called, each time you visit a page. That means each time you load a page, PHP needs to read php.ini and set its settings, it needs to load all its...
Confusion about vim folding - how to disable?
...his line to my .vimrc file cause I had the same issue:
autocmd FileType * exe "normal zR"
This command will be executed every time you open a file automatically. So you won't see the bug and the folding feature won't be lost too)
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Convert from ASCII string encoded in Hex to plain ASCII?
... # pair up
[('a', '1'), ('b', '2'), ('c', '3')]
>>> chr(32) # ascii to character
' '
will look at binascii now...
>>> print binascii.unhexlify('7061756c')
paul
cool (and i have no idea why other people want to make you jump through hoops before they'll h...
What is the optimal length for an email address in a database?
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It seems that it is the best to take 320 as the length.
– Léo Léopold Hertz 준영
Jul 29 '09 at 11:12
40
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How do I connect to a MySQL Database in Python?
...ase note MySQLdb only supports Python 2.
For Windows user, you can get an exe of MySQLdb.
For Linux, this is a casual package (python-mysqldb). (You can use sudo apt-get install python-mysqldb (for debian based distros), yum install MySQL-python (for rpm-based), or dnf install python-mysql (for m...