Vfrdtyky

I am complete beginner in javascript, well and programming in general. The task given in online course is pretty complicated for me.

Basically, it is called checks.js (because it suppose to check your index work) suppose to work like this:

// Built-in  Node.JS module for the check

var assert = require('assert');



// input your function

var addTime = require('./index.js');



assert.equal(addTime(12, 30, 30), '13:00', 'when 30 min is added to 12:30 we get 13:00');

assert.equal(addTime(23, 59, 31), '00:30', 'when 31 min is added to 23:59 we get 00:30');

assert.equal(addTime(11, 50, 61), '12:51', 'when 61 min is added to 11:50 we get 12:51');

assert.equal(addTime(23, 1, 80), '00:21', 'when 80 min is added to 23:01 we get 00:21');



console.info('OK!');

'index.js' is made by a student, the template is like this:

/**

 * @param {Number} hours

 * @param {Number} minutes

 * @param {Number} interval

 * @returns {String}

 */

module.exports = function (hours, minutes, interval) {



};

So I have been made index like this:

module.exports = function (hours, minutes, interval) {

    var allmin = (hours * 60)+minutes+interval;

    var allhours = Math.floor(allmin / 60);

    var fMin = allmin % 60



    if (allhours < 10) {

        allhours = toString(allhours);

        allhours = '0'+allhours;

    }



    if (fMin < 10) {

        fMin = toString(fMin); 

        fMin = '0'+fMin;

    }

    return allhours+':'+fMin

}

And the second one like this:

module.exports = function (hours, minutes, interval) {



   if (hours < 0 || hours > 23) {return false}

    var hours = Math.floor((minutes + interval) / 60);

    var minutes = (minutes + interval) % 60;



    if (hours < 10) {

        hours = toString(hours);

        hours = '0'+hours;

    }



    if (minutes < 10) {

        minutes = toString(minutes); 

        minutes = '0'+minutes;

    }



    return (hours+':'+minutes);

}

which is pretty much the same, but when i run checks.js in terminal to check my index.js, I constantly getting an error:

MBP-John-2:coursera JJ$ node checks.js

assert.js:86

  throw new AssertionError(obj);

  ^



AssertionError [ERR_ASSERTION]: При добавлении 30 мин. к 12:30 получится 13:00

    at Object.<anonymous> (/Users/JJ/js_playground/coursera/checks.js:7:8)

    at Module._compile (internal/modules/cjs/loader.js:707:30)

    at Object.Module._extensions..js (internal/modules/cjs/loader.js:718:10)

    at Module.load (internal/modules/cjs/loader.js:605:32)

    at tryModuleLoad (internal/modules/cjs/loader.js:544:12)

    at Function.Module._load (internal/modules/cjs/loader.js:536:3)

    at Function.Module.runMain (internal/modules/cjs/loader.js:760:12)

    at startup (internal/bootstrap/node.js:308:19)

    at bootstrapNodeJSCore (internal/bootstrap/node.js:878:3)

MBP-John-2:coursera JJ$ 

Really need help!

Thanks in advance!!!