reactjs-validation/src/field-validations.js

import validator from 'validator';

function validateFileld(fields,name,value){
    let errors={}
    let validators=fields.split(',');
    for (var i=0;i<validators.length;i++) {
        let validation=validators[i]
        let values;
        if(validation && validation.includes("=")){            
            let arr=validation.split("=")
            validation=arr[0]
            values=arr[1]
        }
        switch(validation) {
            case 'required':
                errors[name]=false
                if(!value || validator.isEmpty(value)){
                    errors[name]="Invalid"
                }
                break;
            case 'email':
                errors[name]=false
                if(!validator.isEmail(value)){
                    errors[name]="Invalid email"
                }
                break;
            case 'range':
                values=values.split(":")
                errors[name]=false   
                if(!validator.isByteLength(value,values[0],values[1])){
                    errors[name]="Invalid"
                }
                break;
            default:
        }
    }
    return errors;
}

export default validateField;