Check if a JavaScript string is a URL
A related question with an answer Or this Regexp from Devshed:
string
Convert an array to string
You can join your array using the following: Then you can output anyway you want. You can change the comma to what ever you want, a space, a pipe, or whatever.
Taking a new line using printf in java? Is %n correct?
Yes, %n is a newline in printf. See the documentation of java.util.Formatter, specifically the conversion table which specifies: ‘n‘ line separator The result is the platform-specific line separator Your output currently only has a linebreak at the end, not at the points that you seem to want them. You would need to use a format like: (and maybe … Read more
Convert JSON String to JSON Object c#
JObject defines method Parse for this: You might want to refer to Json.NET documentation.
Replace spaces with dashes and make all letters lower-case
Just use the String replace and toLowerCase methods, for example: Notice the g flag on the RegExp, it will make the replacement globally within the string, if it’s not used, only the first occurrence will be replaced, and also, that RegExp will match one or more white-space characters.
What is the difference between String and string in C#?
string is an alias in C# for System.String.So technically, there is no difference. It’s like int vs. System.Int32. As far as guidelines, it’s generally recommended to use string any time you’re referring to an object. e.g. Likewise, I think it’s generally recommended to use String if you need to refer specifically to the class. e.g. This is the style that Microsoft tends to use … Read more
Quotation marks inside a string
You have to escape the second pair of quotation marks using the \ character in front. It might be worth looking at this link, which explains in some detail. Other scenario where you set variable: Sequence in console:
Why are there two different getline() functions (if indeed there are)?
Bear in mind that the Standard library is composed from 3 (main) parts: IOStream, String and STL, plus some tossed in goodies and the C-headers. I don’t see anything weird in having those parts loosely coupled (though I wish it was not the case). Other incongruities include: std::string::length vs std::string::size, the latter having been added for interface compatibility … Read more
How do I check if a string contains a certain character?
By using strchr(), like this for example: Output: exclamationCheck = 1 If you are looking for a laconic one liner, then you could follow @melpomene’s approach: If you are not allowed to use methods from the C String Library, then, as @SomeProgrammerDude suggested, you could simply iterate over the string, and if any character is the … Read more