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What is the _snowman param in Ruby on Rails 3 forms for?
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This parameter was added to forms in order to force Internet Explorer (5, 6, 7 and 8) to encode its parameters as unicode.
Specifically, this bug can be triggered if the user switches the browser's encoding to Latin-1. To understand why a user would decide to d...
How to force JS to do math instead of putting two strings together
...ways use a radix... a sanity check... if (!dots || dots < 1) may be in order too...
– Tracker1
Jan 30 '11 at 8:47
1
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What is the difference between Caching and Memoization?
...trol of the caching policy in your function, whereas memoization is higher order and happens outside the function I guess.
– nicolas
May 1 '14 at 8:41
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Sharing link on WhatsApp from mobile website (not application) for Android
...sApp updated on its official website that we need to use
this HTML tag in order to make it shareable to mobile sites:
<a href="whatsapp://send?text=Hello%20World!">Hello, world!</a>
You can replace text= to have your link or any text content
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LINQ to Entities does not recognize the method
...ery. It has to be able to convert the query to an actual SQL statement. In order for that to work, you will have to restructure your query expression into an expression that Entity Framework can handle.
public System.Linq.Expressions.Expression<Func<Charity, bool>> IsSatisfied()
{
s...
Grepping a huge file (80GB) any way to speed it up?
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that was MUCH quicker by an order of magnitude thanks. BTW I added -n to get the line numbers. Also maybe a -m to exit after match
– zzapper
Dec 17 '12 at 12:55
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Closing Hg Branches
...tparent <revision> hg branch <branchOfRevision> Note that the order is important. This will make your repo think it is on the new revision, while all your files are from the initial one. After that, you can use the --close-branch commit, but use the -X * option to make an empty commit. ...
How can I add an empty directory to a Git repository?
...irectory
*
# Except this file
!.gitignore
Then you don't have to get the order right the way that you have to do in m104's solution.
This also gives the benefit that files in that directory won't show up as "untracked" when you do a git status.
Making @GreenAsJade's comment persistent:
I thi...
np.mean() vs np.average() in Python NumPy?
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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How to hide command output in Bash
...mp;-:
/your/first/command >&- 2>&-
Be careful to note the order: >&- closes stdout, which is what you want to do; &>- redirects stdout and stderr to a file named - (hyphen), which is not what what you want to do. It'll look the same at first, but the latter creates a s...