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How to change the type of a field?
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Had a situation where I needed to convert the _id field as well as not conflict with other indexes: db.questions.find({_id:{$type:16}}).forEach( function (x) { db.questions.remove({_id:x._id},true); x._id = ""+x._id; db.questions.save(x); });
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How do I move to end of line in Vim?
...mode (Append). To jump the last non-blank character, you can press g then _ keys.
The opposite of A is I (Insert mode at beginning of line), as an aside. Pressing just the ^ will place your cursor at the first non-white-space character of the line.
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tmux set -g mouse-mode on doesn't work
...ke scrolling with wheels work
bind -n WheelUpPane if-shell -F -t = "#{mouse_any_flag}" "send-keys -M" "if -Ft= '#{pane_in_mode}' 'send-keys -M' 'select-pane -t=; copy-mode -e; send-keys -M'"
bind -n WheelDownPane select-pane -t= \; send-keys -M
This will enable scrolling on hover over a pane and y...
Error to install Nokogiri on OSX 10.9 Maverick?
...nswered Nov 6 '13 at 8:50
thomas_wittthomas_witt
2,57922 gold badges99 silver badges55 bronze badges
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Mailto links do nothing in Chrome but work in Firefox?
...lt mail client. See this link on how to do that: kb.mozillazine.org/Default_mail_client#Windows
– kennypu
Mar 12 '15 at 23:15
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Javascript - Open a given URL in a new tab by clicking a button
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In javascript you can do:
window.open(url, "_blank");
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How to check whether a variable is a class or not?
...ou couldn't perform the check in the first place.
– a_guest
Dec 16 '16 at 12:42
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Reading Xml with XmlReader in C#
...parsing code looks something like this:
public class Account
{
string _accountId;
string _nameOfKin;
Statements _statmentsAvailable;
public void ReadFromXml( XmlReader reader )
{
reader.MoveToContent();
// Read node attributes
_accountId = reader.GetAtt...
Constants in Objective-C
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You should create a header file like
// Constants.h
FOUNDATION_EXPORT NSString *const MyFirstConstant;
FOUNDATION_EXPORT NSString *const MySecondConstant;
//etc.
(you can use extern instead of FOUNDATION_EXPORT if your code will not be used in mixed C/C++ environments or on other plat...
Does JavaScript have a method like “range()” to generate a range within the supplied bounds?
... startChar.charCodeAt(0), startChar.charCodeAt(0)))
}
lodash.js _.range() function
_.range(10);
=> [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
_.range(1, 11);
=> [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
_.range(0, 30, 5);
=> [0, 5, 10, 15, 20, 25]
_.range(0, -10, -1);
=> [0, -1, -2, -3, -4, -5...