Exercise: Match numbers with regex - video
Exercise number
Write a function that given a string it return true if the string is a number. As there might be several definitions of what is the number create several solutions one for each definition:
- Non negative integer.
- Integer. (Will you also allow + in front of the number or only - ?
- Real number. (Do you allow .3 ? What about 2. ?
- In scientific notation. (something like this: 2.123e4 )

Published on 2015-07-19
Comments
In the comments, please wrap your code snippets within <pre> </pre> tags and use spaces for indentation. comments powered by Disqus
If you have any comments or questions, feel free to post them on the source of this page in GitHub. Source on GitHub.