DIY: Valid Number
Understand how to validate whether a string represents a valid decimal number, including handling signs, decimal points, and exponents. This lesson helps you implement a function to determine number validity, preparing you for coding interview problems on string parsing and input validation.
We'll cover the following...
We'll cover the following...
Problem statement
Validate if a given string can be interpreted as a decimal number or not. Here is a list of characters that can appear in a valid decimal number:
-
Numbers -
0-9 -
Exponent -
"e" -
Positive/negative sign -
"+"/"-"...