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Go to first line in a file in vim?
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418
In command mode (press Esc if you are not sure) you can use:
gg,
:1,
1G,
or 1gg.
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Use git “log” command in another folder
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192
From, man git:
You can do this with the --git-dir parameter, before passing any commands.
gi...
MySql Table Insert if not exist otherwise update
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144
Jai is correct that you should use INSERT ... ON DUPLICATE KEY UPDATE.
Note that you do not n...
Multiple Type Constraints in Swift
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edited Oct 25 '19 at 15:26
Martin
8577 bronze badges
answered Jun 6 '14 at 19:27
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Spring CrudRepository findByInventoryIds(List inventoryIdList) - equivalent to IN clause
...o the trick.
The HTTP request parameter format would be like so:
Yes ?id=1,2,3
No ?id=1&id=2&id=3
The complete list of JPA repository keywords can be found in the current documentation listing. It shows that IsIn is equivalent – if you prefer the verb for readability – and that JPA ...
How to find out which view is focused?
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113
Call getCurrentFocus() on the Activity.
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Find object in list that has attribute equal to some value (that meets any condition)
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Tropicalrambler
16333 silver badges1313 bronze badges
answered Aug 19 '11 at 18:01
agfagf
140k...
How to convert a ruby hash object to JSON?
...thod `to_json' for {:make=>"bmw", :year=>"2003"}:Hash
# from (irb):11
# from /usr/bin/irb:12:in `<main>'
require 'json'
# => true
car.to_json
# => "{"make":"bmw","year":"2003"}"
As you can see, requiring json has magically brought method to_json to our Hash.
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Creating PHP class instance with a string
...ther cool stuff you can do in php are:
Variable variables:
$personCount = 123;
$varname = 'personCount';
echo $$varname; // echo's 123
And variable functions & methods.
$func = 'my_function';
$func('param1'); // calls my_function('param1');
$method = 'doStuff';
$object = new MyClass();
$obj...
MySQL: Order by field size/length
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163
SELECT * FROM TEST ORDER BY LENGTH(description) DESC;
The LENGTH function gives the length o...