Validating an Id length(15 or 18)

July 27, 2017 nisarkhan APEX, 0

static public String validateId(String Idparam) {
        String id = String.escapeSingleQuotes(Idparam);
    	if((id.length() == 15 || id.length() == 18) && Pattern.matches('^[a-zA-Z0-9]*$', id)) {
    		return id;
    	}
    	return null;
}

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Check InstanceOf of String or ID sObjectUtils class, utility