How we can check the the variable text is number or not in Azure logic app without inline

Question

I have variables a = "hhddj"; Variable b = "1234"; . I need an expression that gives a is type string and b is type int . Like we have Isnumeric(a) needs to return false , and Isnumeric(b) needs to return true .

Answer 1

The following expression can be used for checking whether the text in variables('a') is in fact an integer:

equals(replace(replace(replace(replace(replace(replace(replace(replace(replace(replace(variables('a'), '0', ''), '1', ''), '2', ''), '3', ''), '4', ''), '5', ''), '6', ''), '7', ''), '8', ''), '9', ''), '')