The task doesn't define which strings are considered "numeric", so we do Integers and Doubles, which should catch the most common cases (including hexadecimal 0x notation): so read s:: Int (for instance) could be reliably used if string s passed these tests. The Lab VIEW version is shown on the top-right hand corner.

Haxe has a built-in function that will convert a string to an integer, so we can use that to determine if the string is numeric or not. You can download it, then drag-and-drop it onto the Lab VIEW block diagram from a file browser, and it will appear as runnable, editable code.

' is NOT a number '0' is a number '0.0' is a number '.123' is a number '-.123' is a number '12E3' is a number '12E-3' is a number '12 3' is NOT a number 'end' is NOT a number0:? This function is not particularly useful in a statically typed language.

.action_button.action_button:active.action_button:hover.action_button:focus.action_button:hover.action_button:focus .count.action_button:hover .count.action_button:focus .count:before.action_button:hover .count:before.u-margin-left--sm.u-flex.u-flex-auto.u-flex-none.bullet. Returns A Boolean value: True if Value contains a valid numeric value, False otherwise. Value; If Is Number(&Value) Then /* do numeric processing */ Else /* do non-numeric processing */ End-if; Quoting from perlfaq4: How do I determine whether a scalar is a number/whole/integer/float?Assuming that you don't care about IEEE notations like "Na N" or "Infinity", you probably just want to use a regular expression.Create a boolean function which takes in a string and tells whether it is a numeric string (floating point and negative numbers included) in the syntax the language uses for numeric literals or numbers converted from strings. exp); ( out$float2fraction$"1.2"& out$float2fraction$"1.02"& out$float2fraction$"1.01"& out$float2fraction$"10.01"& out$float2fraction$"10.01e10"& out$float2fraction$"10.01e1"& out$float2fraction$"10.01e2"& out$float2fraction$"10.01e-2"& out$float2fraction$"-10.01e-2"& out$float2fraction$"-10e-2"& out$float2fraction$"0.000"); is Numeric("12"): true is Numeric(" 12 "): true is Numeric("hello12"): false is Numeric("-12"): true is Numeric("02"): true is Numeric("0-12"): false is Numeric(" 12"): true is Numeric("1.5"): true is Numeric("1,000"): true is Numeric("1_000"): true is Numeric("0x10"): false is Numeric("0b10101111_11110000_11110000_00110011"): false is Numeric("-0b10101"): false is Numeric("0x10.5"): falseis Numeric("12"): true is Numeric(" 12 "): true is Numeric("hello12"): false is Numeric("-12"): true is Numeric("02"): true is Numeric("0-12"): false is Numeric(" 12"): true is Numeric("1.5"): true is Numeric("1,000"): true is Numeric("1_000"): true is Numeric("0x10"): true is Numeric("0b10101111_11110000_11110000_00110011"): true is Numeric("-0b10101"): false is Numeric("0x10.5"): false, which will return true if the argument passed is either an integer or a float.begin % determnines whether the string contains an integer, real or imaginary % % number. Erlang also has two functions to transform a string to either a floating number or an integer, which will be used in conjunction with The 'from Str' methods return a parsed number or given an error. then then ; s" 1234" is-numeric \ 1234 as integer = 1234s" 1234." is-numeric \ 1234.