Quick question: is there a function that return true when a given string is a number?
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int("string") > 0 will work other than for zero. Otherwise you could use a regular expression.
For additional precision you could use
"string" = "0"
int("string") != 0.
There is a function that returns true when a given string is NOT a number. It's not wrapped in any System expression so you'll have to use the Browser.ExecJS expression.
Browser.ExecJS("!isNaN(""" & yourVar & """);")[/code:1zas59qt]
int(x) got one problem. If x < 1 (ie. 0.5), it will return 0, which is also the value to indicate that x is not a number. To remedy this, use float(x) instead.