get names and email address seperated out from comma seperated string received from gMail api

Tests if a string can be parsed as a number which may contain a fractional component. May be negative. Plus sign and scientific notation are not supported. Valid: '1234', '-1234', '-1.234', '1234.1234' Not valid: '1.1.1', '+1', '.1', '-.1', '10.1234E10', '1.'

Validation Expression to validate Blank String checks

This is a regular expression for validating places

Regex to quote keys to parse a string of relaxed JSON. Rules: No ':', '"' or newline in keys allowed

allow only alpabets digits and special characters

Regex to qoute a JSON-string

This is for the validation of number

This will catch the id which is an integer and not characters mixed with numbers