How to convert a time string like 1m15s to 75s, 75 or 75000 ideally using momentjs.
I attempted to parse that string using new Date('1m1s') but it gives Invalid Date.
I don't want to resort to regex:
const second = (function () {
const countdownStep = '1h1m1s'.match(
/(?:(?<h>\d{0,2})h)?(?:(?<m>\d{0,2})m)?(?:(?<s>\d{0,2})s)?/i
);
return (
(countdownStep.groups.h
? parseInt(countdownStep.groups.h) * 3600
: 0) +
(countdownStep.groups.m
? parseInt(countdownStep.groups.m) * 60
: 0) +
(countdownStep.groups.s ? parseInt(countdownStep.groups.s) : 0)
);
})();
You can use the duration interface of momentjs:
let s = '1m15s';
// convert to duration format and pass to momentjs
let secs = moment.duration('PT' + s.toUpperCase()).as("seconds");
console.log("seconds: ", secs);<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.29.1/moment.min.js"></script>Without library, it could be:
const unit = { s: 1, m: 60, h: 60*60 };
let s = '1m15s';
let secs = s.toLowerCase().match(/\d+./g)
.reduce((acc, p) => acc + parseInt(p) * unit[p.at(-1)], 0);
console.log("seconds: ", secs);I tried this, is it helpful to you
let d = '1H1s';
d = d.toLowerCase();
let sec = 0;
if(d.indexOf('h') > -1) {
if (d.indexOf('m') == -1) {
d = d.substring(0, d.indexOf('h') + 1) +"0m"+d.substring(d.indexOf('h') + 1);
}
}
let newDs = d.replace('h',':').replace('m',':').replace('s','').split(':');
newDs.forEach((v, i) => sec += Math.pow(60, (newDs.length - i - 1)) * v);
console.log(sec);Another approach using plain js:
const getSecondsFromString = (str) => {
const hourIndex = str.indexOf("h")
const minuteIndex = str.indexOf("m")
const secondIndex = str.indexOf("s")
let hours = 0
let minutes = 0
let seconds = 0
if (hourIndex !== -1) {
hours = Number(str.substring(0, hourIndex))
}
if (minuteIndex !== -1) {
if (hourIndex !== -1) {
minutes = Number(str.substring(hourIndex + 1, minuteIndex))
} else {
minutes = Number(str.substring(0, minuteIndex))
}
}
if (secondIndex !== -1) {
if (minuteIndex !== -1) {
seconds = Number(str.substring(minuteIndex + 1, secondIndex))
} else if (hourIndex !== -1) {
seconds = Number(str.substring(hourIndex + 1, secondIndex))
} else {
seconds = Number(str.substring(0, secondIndex))
}
}
return hours * 3600 + minutes * 60 + seconds
}