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How to use MySQL DECIMAL?
...et in trouble if you use DOUBLE columns for financial data.
DOUBLE is actually just a double precision (64 bit instead of 32 bit) version of FLOAT. Floating point numbers are approximate representations of real numbers and they are not exact. In fact, simple numbers like 0.01 do not have an exact r...
Flatten List in LINQ
...nt>> but i want to return only List<int> so i want to merge all my record in my IEnumerable<List<int>> to only one array.
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jQuery find parent form
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In HTML5, there is a new 'form' attribute which allows you to have the element outside the parent form. This should be checked first.
– mcintyre321
Aug 4 '15 at 11:00
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ActiveRecord, has_many :through, and Polymorphic Associations
...on. :source should points to the polymorphic belongs_to relationship. Then all you need to do is specify :source_type for the relationship you're trying to define.
This fix to the Widget model should allow you do exactly what you're looking for.
class Widget < ActiveRecord::Base
has_many :wid...
How can I detect whether an iframe is loaded?
...y on("load"). (Unfortunately, the docs don't quite make clear that that's all you need to do.)
– Teepeemm
Oct 5 '14 at 0:25
1
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if, elif, else statement issues in Bash
...to if [ "$seconds" -eq 0 ];then ... fi ]. @LeiYang man testis what you actually looking for
– Melicerte
May 15 '19 at 9:33
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How to output a comma delimited list in jinja python template?
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This is awesome, especially at the end of the loop in html
– Sinux
Aug 27 '15 at 14:38
8
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SQL how to increase or decrease one for a int column in one command
... x=1, y=2
They both can handle your question. However, the first syntax allows for more flexibility to update the record rather than just replace it (as the second one does).
Keep in mind that for both to exist, there has to be a UNIQUE key defined...
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Removing list of vms in vagrant cache
...s untouched, though. Meaning one still has to unregister and delete it manually. The very simple thing should be that vagrant does its job properly when given $ vagrant destroy -f <id>
– silverdr
Dec 14 '15 at 16:04
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A Task's exception(s) were not observed either by Waiting on the Task or accessing its Exception pro
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If you create a Task, and you don't ever call task.Wait() or try to retrieve the result of a Task<T>, when the task is collected by the garbage collector, it will tear down your application during finalization. For details, see MSDN's page on Exception Handlin...