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Best way to create unique token in Rails?
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-- Update --
As of January 9th, 2015. the solution is now implemented in Rails 5 ActiveRecord's secure token implementation.
-- Rails 4 & 3 --
Just for future reference, creating safe random token and ensuring it's uniqueness for the model (when usin...
Android: When should I use a Handler() and when should I use a Thread?
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edited Jan 11 '15 at 3:24
Gaessaki
66677 silver badges1414 bronze badges
answered Dec 19 '12 at 14:40...
No Main() in WPF?
... as necessary). Look in obj/debug for an app file; I have (courtesy of "C# 2010 Express") App.g.i.cs with:
namespace WpfApplication1 {
/// <summary>
/// App
/// </summary>
[System.CodeDom.Compiler.GeneratedCodeAttribute("PresentationBuildTasks", "4.0.0.0")]
public ...
When to use RDLC over RDL reports?
I have been studying SSRS 2005 / 2008 in the past weeks and have created some server side reports. For some application, a colleague suggested that I look into RDLC for that particular situation. I am now trying to get my head around the main difference between RDL and RDLC.
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How and when to use ‘async’ and ‘await’
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Writing files in Node.js
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2535
There are a lot of details in the File System API. The most common way is:
const fs = requir...
How to check if a string contains text from an array of substrings in JavaScript?
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21 Answers
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HTML Form: Select-Option vs Datalist-Option
...t element. If the use can enter whatever, use the datalist element.
Edit 2: Found this tidbit in the HTML Living Standard: "Each option element that is a descendant of the datalist element...represents a suggestion."
sha...
Best practice: ordering of public/protected/private within the class definition?
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answered Nov 19 '09 at 4:29
AsaphAsaph
142k2323 gold badges178178 silver badges182182 bronze badges
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This type of CollectionView does not support changes to its SourceCollection from a thread different
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Since your ObservableCollection is created on UI thread, you can only modify it from UI thread...