I get the time in the format below
How should I compare these two and find the bigger one? My Goal is to sort them:
function (a, b) {
//here is should find a way to extract a and b to find the right number to compare
a = '16 days, 23 hours, 39 minutes';
b = '39 minutes';
return ((a < b) ? -1 : ((a > b) ? 1 : 0));
}
Using Regex we can extract total time first and convert that in minutes within getTimeInMinutes
method and then compare them accordingly. Like this:
function(a, b) {
function getTimeInMinutes(timestamp) {
const regex = /(?:(\d*?) days, )?(?:(\d*?) hours, )?(?:(\d*?) minutes)?/;
let [, days = 0, hours = 0, minutes = 0] = regex.exec(timestamp);
days = parseInt(days, 10);
hours = parseInt(hours, 10);
minutes = parseInt(minutes, 10);
const totalMinutes = (days * 24 * 60) + (hours * 60) + minutes;
return totalMinutes;
}
const totalMinutesInA = getTimeInMinutes(a);
const totalMinutesInB = getTimeInMinutes(b);
return totalMinutesInA - totalMinutesInB;
}
function compare(a, b) { function getTimeInMinutes(timestamp) { const regex = /(?:(\\d*?) days, )?(?:(\\d*?) hours, )?(?:(\\d*?) minutes)?/; let [, days = 0, hours = 0, minutes = 0] = regex.exec(timestamp); days = parseInt(days, 10); hours = parseInt(hours, 10); minutes = parseInt(minutes, 10); const totalMinutes = (days * 24 * 60) + (hours * 60) + minutes; return totalMinutes; } const totalMinutesInA = getTimeInMinutes(a); const totalMinutesInB = getTimeInMinutes(b); console.log({totalMinutesInA, totalMinutesInB}) return totalMinutesInA - totalMinutesInB; } console.log('Test 1', compare('4 minutes', '3 minutes')); console.log('Test 2', compare('24 minutes', '1 hours, 3 minutes')); console.log('Test 2', compare('2 days, 24 minutes', '2 days, 24 minutes'))
Another, rather verbose, option would be somthing like this: https://jsfiddle.net/0k9asxeb/
var a = '16 days, 23 hours, 39 minutes';
var b = '39 minutes';
const getDayMinutes = (string) => {
if (!string.includes(' days')) {
return 0;
}
const days = string.split(' days')[0];
console.log(days);
return days * 24 * 60;
}
const getHoursMinutes = (string) => {
if (!string.includes (' hours')) {
return 0;
}
const hoursDirty = string.split(' hours')[0];
console.log(hoursDirty);
if (!hoursDirty.includes(',')) {
return hoursDirty;
}
const hours = hoursDirty.slice(hoursDirty.lastIndexOf(',') + 2, hoursDirty.length);
console.log(hours);
return hours * 60;
}
const getMinutes = (string) => {
if (!string.includes(' minutes')) {
return 0;
}
const minutesDirty = string.split(' minutes')[0];
console.log(minutesDirty);
if (!minutesDirty.includes(',')) {
return minutesDirty;
}
const minutes = minutesDirty.slice(minutesDirty.lastIndexOf(',') + 2, minutesDirty.length);
console.log(minutes);
return minutes;
}
const getTotalMinutesInString = (string) => {
const dayMinutes = getDayMinutes(string);
console.log('dayMinutes', dayMinutes);
const hoursMinutes = getHoursMinutes(string);
console.log('hoursMinutes', hoursMinutes);
const minutes = getMinutes(string);
console.log('minutes', minutes);
return parseInt(dayMinutes + hoursMinutes + minutes);
}
const totalMinutes = getTotalMinutesInString(b);
console.log(totalMinutes);
Make a function to convert the string into seconds. Here's an example:
const toTimeConvertor = (timeEntry) => { const string = timeEntry.replace(',', ''); switch(string) { case 'day': case 'days': return 60 * 60 * 24; case 'hour': case 'hours': return 60 * 60; case 'minute': case 'minutes': return 60; case 'second': case 'seconds': return 1; default: return 0; } }; const stringToSeconds = (timeString) => { return [...timeString.split(',')].reduce((seconds, entry) => { const values = entry.trim().split(' '); const timeNumberString = values[0]; const timeConvertorString = values[1]; const timeNumber = Number.parseInt(timeNumberString); const timeConvertor = toTimeConvertor(timeConvertorString) const time = timeNumber * timeConvertor; return seconds + time; }, 0); }; const myFilter = (a, b) => stringToSeconds(a) - stringToSeconds(b); //Demo Output const list = [ '16 days, 23 hours, 39 minutes', '39 minutes', '5 days, 36 minutes' ]; const sortedList = list.sort(myFilter); console.log(list);
Note: You might want to include some more checks for production if the input is generated by users. Good luck.
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