klyn.Long.tryParse
method
public static tryParse( readonly value as String, out result as Long ) as Boolean:
Description

Parses a Long value from text.

Parameters
ParameterDescription
valueText to parse.
resultReceives the parsed value on success, or zero on failure.
Returns

true when value is a valid Long; otherwise false.

Example
result as Long
assert Long.tryParse("-42", result)
assert result == Long(-42)