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How to check if string input is a number? [duplicate]
How do I check if a user's string input is a number (e.g. -1 , 0 , 1 , etc.)?
24 Answers
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Vim search and replace selected text
...u can always do a substitution simply by typing:
%s//<your-replacement-string>
... because a blank search on the s command uses the last searched for string.
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Converting JSONarray to ArrayList
I am downloading a JSON string and converting it to JSONArray. Im putting it into a listview and need to be able to delete from that listview later, and since JSONArray has no .remove method (Thanks Obama), I am trying to convert it to an arraylist.
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Converting string into datetime
I've got a huge list of date-times like this as strings:
20 Answers
20
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How do I cast a string to integer and have 0 in case of error in the cast with PostgreSQL?
...e integers and I need it in integer type in a query. Some values are empty strings.
The following:
13 Answers
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String replacement in Objective-C
How to replace a character is a string in Objective-C?
6 Answers
6
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Can an ASP.NET MVC controller return an Image?
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Use the base controllers File method.
public ActionResult Image(string id)
{
var dir = Server.MapPath("/Images");
var path = Path.Combine(dir, id + ".jpg"); //validate the path for security or use other means to generate the path.
return base.File(path, "image/jpeg");
}
As a...
How to get VM arguments from inside of Java application?
...untimeMXBean runtimeMxBean = ManagementFactory.getRuntimeMXBean();
List<String> arguments = runtimeMxBean.getInputArguments();
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What is the canonical way to trim a string in Ruby without creating a new string?
...strip! looks cleaner - its a pity it returns nil instead of the unmodified string. Unless someone posts a better ans.. you're getting the accepted bit.
– Gishu
Jun 16 '09 at 12:00
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How can I make a clickable link in an NSAttributedString?
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Use NSMutableAttributedString.
NSMutableAttributedString * str = [[NSMutableAttributedString alloc] initWithString:@"Google"];
[str addAttribute: NSLinkAttributeName value: @"http://www.google.com" range: NSMakeRange(0, str.length)];
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