cron-expression-validator

cron-expression-validator

cron-expression-validator is a Node.JS library to validate quartz cron expressions.

Installation

npm install cron-expression-validator

Usage

isValidCronExpression method reqire string (cron expression) as parameter and returns boolean value

var cronValidator = require('cron-expression-validator');
var isValid = cronValidator.isValidCronExpression("* * * * * ? *"); // returns true

if(cronValidator.isValidCronExpression("* * * * * ? *")) { // returns true
	// Your code
}

if(cronValidator.isValidCronExpression("* * * * * * *")) { // returns false
	// Your code
}

Cron accepted values

Seconds: 0-59
Minutes: 0-59
Hours: 0-23
Day of Month: 1-31, L, LW
Months: (JAN-DEC and 1-12)
Day of Week: (SUN-SAT and 1-7)
Year: 1970-2099