javascript regex for string starting with forward slash followed by alphanum chars and no space

The regex you need is:

/^\/[a-z0-9]+$/i

i.e.:

• ^ - anchor the start of the string
• \/ - a literal forward slash, escaped
• [a-z0-9]+ - 1 or more letters or digits. You can also use \d instead of 0-9
• $ - up to the end of the string
• /i - case independent

This should do it. This takes a-z and A-Z and 0-9.

/^\/[a-z0-9]+$/i

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