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Get the latest record from mongodb collection
...t record is fetched when your are limiting the output to just one document and it must be the top document in collection.
– kailash yogeshwar
Nov 23 '16 at 16:58
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How do I read the first line of a file using cat?
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+1. you only need the head not the whole cat :P (the command tail is part of the bash pun too)
– SparK
Feb 17 '14 at 18:54
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cd into directory without having permission
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Enter super user mode, and cd into the directory that you are not permissioned to go into. Sudo requires administrator password.
sudo su
cd directory
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YAML Multi-Line Arrays
...['string1', 'string2', 'string3',
'string4', 'string5',
'string6']
and even have multi-line strings in single-line arrays:
key: ['string1', 'long
string', 'string3', 'string4', 'string5', 'string6']
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PHP code to remove everything but numbers
...9]/', '', '604-619-5135');
preg_replace uses PCREs which generally start and end with a /.
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multiple tags
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Yes, absolutely. You can have multiple header, nav, and footer tags sans penalty.
As long as you're making sure you are using tags semantically and you aren't putting them in invalid places (they're block-level elements, so you can't put them inside an inline element, for exa...
How to copy data to clipboard in C#
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There are two classes that lives in different assemblies and different namespaces.
WinForms: use following namespace declaration, make sure Main is marked with [STAThread] attribute:
using System.Windows.Forms;
WPF: use following namespace declaration
using System.Windows;
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How can I find all of the distinct file extensions in a folder hierarchy?
On a Linux machine I would like to traverse a folder hierarchy and get a list of all of the distinct file extensions within it.
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How to Set Focus on Input Field using JQuery
... so used to it, when I see the space I automatically think "child element" and it takes a second to de-confuse myself. But hey, that's just me. It's cool that it works either way.
– simshaun
Jul 18 '11 at 20:19
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Testing if a checkbox is checked with jQuery
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Use .is(':checked') to determine whether or not it's checked, and then set your value accordingly.
More information here.
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