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How to count objects in PowerShell?
... in the PowerShell user guide, one of the core PowerShell concepts is that commands accept and return objects instead of text. So for example, running get-alias returns me a number of System.Management.Automation.AliasInfo objects:
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Mechanisms for tracking DB schema changes [closed]
... are applied and a "down" method in which the changes are undone. A single command brings the database up to date, and can also be used to bring the database to a specific version of the schema. In Rails, migrations are kept in their own directory in the project directory and get checked into versio...
Remove all multiple spaces in Javascript and replace with single space [duplicate]
... edited May 23 '17 at 12:18
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answered Jul 20 '10 at 3:51
JosiahJosiah
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Signed to unsigned conversion in C - is it always safe?
... It will be large, but it will not overflow, because:
6.2.5 (9)
A computation involving unsigned operands can never overflow, because a result that cannot be represented by the resulting unsigned integer type is reduced modulo the number that is one greater than the largest value that can b...
C++ SFINAE examples?
... can't have a member pointer. If SFINAE didn't exist, then you would get a compiler error, something like '0 cannot be converted to member pointer for non-class type int'. Instead, it just uses the ... form which returns Two, and thus evaluates to false, int is not a class type.
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Using Excel OleDb to get sheet names IN SHEET ORDER
...re in Excel
Excel Sheet Names in Sheet Order
Seems like this would be a common enough requirement that there would be a decent workaround.
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What is the difference between HTTP and REST?
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How to log out user from web site using BASIC authentication?
...thentication wasn't designed to manage logging out. You can do it, but not completely automatically.
What you have to do is have the user click a logout link, and send a ‘401 Unauthorized’ in response, using the same realm and at the same URL folder level as the normal 401 you send requesting a...
How to get the number of Characters in a String?
...", len("世界"), utf8.RuneCountInString("世界"))
}
Phrozen adds in the comments:
Actually you can do len() over runes by just type casting.
len([]rune("世界")) will print 2. At leats in Go 1.3.
And with CL 108985 (May 2018, for Go 1.11), len([]rune(string)) is now optimized. (Fixes issue 2492...
What is the difference between GitHub and gist?
... However, everything is driven by git revision control, so gists also have complete revision histories.
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