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Finding out whether a string is numeric or not
...inus sign: "^-?\d+$"
The regular expression can be checked in the online web site.
The helper function is as following.
// Validate the input string with the given pattern and
// return the result as a boolean
- (BOOL)validateString:(NSString *)string withPattern:(NSString *)pattern
{
NSErro...
Better naming in Tuple classes than “Item1”, “Item2”
...t for the demonstration. Ideally this data might be coming from some DB or web service call
return ("Rasik", "Bihari", "Rasik-PC", 1000);
}
The output on console:
Employee Details: Rasik, Bihari, Rasik-PC, 1000
Creating a list of Tuples having named properties
var tupleList = new List&l...
Big-O summary for Java Collections Framework implementations? [closed]
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This website is pretty good but not specific to Java: http://bigocheatsheet.com/
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How to enable PHP short tags?
I have a web application on a Linux server which starts with <?
19 Answers
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Plot correlation matrix into a graph
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@daroczig cran.r-project.org/web/packages/corrplot/vignettes/…
– assylias
Sep 7 '15 at 12:50
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What does “WARN Could not determine content-length of response body.” mean and how to I get rid of i
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@KenThompson the problem is Webrick, not Rails. Webrick do not support keep-alive connections and thus raises the warning/issue we're seeing. It is recommended you use a proper/better webserver (like thin or passenger standalone) for web. Upcoming versi...
How do you implement a “Did you mean”? [duplicate]
Suppose you have a search system already in your website. How can you implement the "Did you mean: <spell_checked_word> " like Google does in some search queries ?
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Method Syntax in Objective-C
...d for the past few years. I'm new to Objective C, and transitioning from a web world to the mobile industry. I'd like to thank you for such a well documented explanation that is so relevant to the question. +1
– d3v1lman1337
Sep 17 '12 at 15:24
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javascript set a variable if undefined
... treats Number.NaN as not equal to NaN." (developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/…) Doesn't matter here.
– Trevor Dixon
Jul 13 '18 at 12:33
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How to access parent Iframe from JavaScript
...in because a server is not set up. This is the best and only solution: dyn-web.com/tutorials/iframes/postmessage
– user985399
Aug 17 '19 at 11:18
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