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How to find the key of the largest value hash?
...
You can use the select method if you want the key value pair returned:
hash.select {|k,v| v == hash.values.max }
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What is this 'Lambda' everyone keeps speaking of?
... without bloating your code unnecessarily. For example, in Ruby:
(1..100).select {|num| num % 2 == 0}
This will create an array containing the even numbers between 1 and 100. We don't have to write out an explicit loop — the select method takes a function that it uses to test the values, so all...
How to get the part of a file after the first line that matches a regular expression?
...it, -e indicated a script to sed, /TERMINATE/,$ is an address (line) range selection meaning the first line matching the TERMINATE regular expression (like grep) to the end of the file ($), and p is the print command which prints the current line.
This will print from the line that follows the line...
How can I save application settings in a Windows Forms application?
...gs. Right click on the project in Solution Explorer and choose Properties. Select the Settings tab and click on the hyperlink if settings doesn't exist.
Use the Settings tab to create application settings. Visual Studio creates the files Settings.settings and Settings.Designer.settings that contain...
How can Xml Documentation for Web Api include documentation from beyond the main project?
...c. Add the following method below the constructor:
private XPathNavigator SelectSingleNode(string selectExpression)
{
foreach (var navigator in _documentNavigators)
{
var propertyNode = navigator.SelectSingleNode(selectExpression);
if (propertyNode != null)
retur...
Function of Project > Clean in Eclipse
...the navigator view right click on your project (or appropriate folder) and select Refresh from the context menu. This will remove any files that have been deleted and add any new ones that are not yet listed in your project.
– SteveS
May 4 '12 at 12:34
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Does MongoDB's $in clause guarantee order
...ocuments are retrieved. That of course will be the natural order or by the selected index order as shown.
If you need to preserve this order, then you basically have two options.
So let's say that you were matching on the values of _id in your documents with an array that is going to be passed in ...
Working with time DURATION, not time of day
...rmula, =A1, then highlight the cell, go into the formatting dropdown menu, select Custom, and type in dddd.
Repeat all this in the row below.
Finally, say you want to display that duration in cell D2. Enter the formula, =(a2+b2)-(a1+b1). If you want this displayed as "22h 30m", select the cell, ...
mysql check collation of a table
...ry INFORMATION_SCHEMA.TABLES and get the collation for a specific table:
SELECT TABLE_SCHEMA
, TABLE_NAME
, TABLE_COLLATION
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_NAME = 't_name';
that gives a much more readable output in contrast to SHOW TABLE STATUS that contains a lot of irreleva...
Can't delete virtual device from Eclipse, android
...e inside [Your Device].avd folder
From Android Studio
Open AVD Manager
Select virtual device that you want to delete
Click down arrow at the end and select [Show on Disk] it will open directory
Find *.lock files and delete inside [Your Device].avd folder
After these steps it will allow you to ...