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Pry: show me the stack
...
Use the pry-stack_explorer plugin, it allows you to move up and down the call-stack (with up and down), display the callstack (with show-stack), and so on:
see here:
Frame number: 0/64
From: /Users/johnmair/ruby/rails_projects/personal_site/app/controllers/pos...
Why are margin/padding percentages in CSS always calculated against width?
... The actual reasoning of why the spec is written this way is still, technically, unknown.
Element height is defined by the height of the
children. If an element has padding-top: 10% (relative to parent
height), that is going to affect the height of the parent. Since the
height of the child...
T-SQL: Opposite to string concatenation - how to split string into multiple records [duplicate]
...s(pn, start, stop) AS (
SELECT 1, 1, CHARINDEX(@sep, @s)
UNION ALL
SELECT pn + 1, stop + 1, CHARINDEX(@sep, @s, stop + 1)
FROM Pieces
WHERE stop > 0
)
SELECT pn,
SUBSTRING(@s, start, CASE WHEN stop > 0 THEN stop-start ELSE 512 END) AS s
FROM Piec...
CASCADE DELETE just once
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If you really want DELETE FROM some_table CASCADE; which means "remove all rows from table some_table", you can use TRUNCATE instead of DELETE and CASCADE is always supported. However, if you want to use selective delete with a where ...
Removing multiple classes (jQuery)
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There are many ways can do that!
jQuery
remove all class
$("element").removeClass();
OR
$("#item").removeAttr('class');
OR
$("#item").attr('class', '');
OR
$('#item')[0].className = '';
remove multi class
$("element").removeClass("class1 ... classn");
OR
$("element").re...
Can we set a Git default to fetch all tags during a remote pull?
...that are downloaded from the
remote repository are fetched and stored locally.
If that default statement is not a restriction, then you can also try
git pull --force
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Reverse Range in Swift
...o:0,by:-1) { print(i) } // 5 4 3 2 1
Update For latest Swift 2
First of all, protocol extensions change how reverse is used:
for i in (1...5).reverse() { print(i) } // 5 4 3 2 1
Stride has been reworked in Xcode 7 Beta 6. The new usage is:
for i in 0.stride(to: -8, by: -2) { print(i) } // 0 -2...
Clearing localStorage in javascript?
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@BakedInhalf not at all. Maybe your app sets it over again?
– destan
Jun 19 '14 at 12:51
5
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Number of rows affected by an UPDATE in PL/SQL
...ut how many rows were affected by the UPDATE? When executing the query manually it tells me how many rows were affected, I want to get that number in PL/SQL.
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How can I exclude all “permission denied” messages from “find”?
I need to hide all permission denied messages from:
17 Answers
17
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