How to test if String contains a number?

[Merudo]

How can I test if a string contains a number?

I want to use the "eval" function on a string, but when I do it on a string without numbers I get the following:

Invalid number of parameters 0, expected at least 1 parameters

[aliasmask]

You can use Wiki: isNumber() or you can use this trick.

Code: Select all

[H: result = eval(""+value)]
OR
[H: result = eval(string(value))]