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LINQ Aggregate algorithm explained
...operates on the previous result and the third element and carries forward. etc.
Example 1. Summing numbers
var nums = new[]{1,2,3,4};
var sum = nums.Aggregate( (a,b) => a + b);
Console.WriteLine(sum); // output: 10 (1+2+3+4)
This adds 1 and 2 to make 3. Then adds 3 (result of previous) and 3 ...
pinterest api documentation [closed]
...sts listed tijn.bo.lt/pinterest-api but everything returns 404 for me, are all of these disabled?
– Matilda
Jul 23 '12 at 6:31
4
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Check if a string contains a number
...it exists in the string, otherwise False.
Demo:
>>> king = 'I shall have 3 cakes'
>>> num_there(king)
True
>>> servant = 'I do not have any cakes'
>>> num_there(servant)
False
share
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Looping over arrays, printing both index and value
...., not splitting them on whitespace. If foo=(x 'y z'), then f "${foo[@]}" calls f with two arguments, x and 'y z'. Metadata queries like "${!foo[@]}" and "${#foo[@]}" similarly act on foo as an array.
– BallpointBen
Sep 5 '18 at 1:23
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Filter LogCat to get only the messages from My Application in Android?
...ssages to the log you can use adb -d logcat System.out:I *:S to show only calls to System.out.
You can find all the log levels and more info here: https://developer.android.com/studio/command-line/logcat.html
http://developer.android.com/reference/android/util/Log.html
EDIT: Looks like I jumped t...
Setting up a common nuget packages folder for all solutions when some projects are included in multi
... get into a complex TFS workspace structure with branches, shared projects etc. it fails to scale efficiently.
– gravidThoughts
Aug 8 '16 at 20:50
add a comment
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What 'sensitive information' could be disclosed when setting JsonRequestBehavior to AllowGet
...g the data and all side-effecting operations should use POST, PUT, DELETE, etc. In other words, I just think that this 'sensitive information' error message is misleading. If the developer uses the GET method the way it should be used then everything is fine! :)
– ps_ttf
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How can I check for “undefined” in JavaScript? [duplicate]
...statement, it cannot be redefined any more than if/else/while/for/function etc. could be.
– MooGoo
Aug 2 '10 at 19:31
57
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Flask-SQLAlchemy how to delete all rows in a single table
How do I delete all rows in a single table using Flask-SQLAlchemy?
3 Answers
3
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How to validate GUID is a GUID
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When I'm just testing a string to see if it is a GUID, I don't really want to create a Guid object that I don't need. So...
public static class GuidEx
{
public static bool IsGuid(string value)
{
Guid x;
return Guid.TryParse(value, out x);
}
}
And here's how ...