mod-arch-shared
Version:
Shared library for modular architecture micro-frontend projects
72 lines • 2.16 kB
JavaScript
// TODO: [Reusable Codebase] Trimed down version of the original file. Needs to be updated with the original file.
const printAgo = (time, unit) => `${time} ${unit}${time > 1 ? 's' : ''} ago`;
const printIn = (time, unit) => `in ${time} ${unit}${time > 1 ? 's' : ''}`;
export const relativeTime = (current, previous) => {
const msPerMinute = 60 * 1000;
const msPerHour = msPerMinute * 60;
const msPerDay = msPerHour * 24;
const msPerMonth = msPerDay * 30;
const msPerYear = msPerDay * 365;
if (Number.isNaN(previous)) {
return 'Just now';
}
let elapsed = current - previous;
let shortPrintFn = printAgo;
if (elapsed < 0) {
elapsed *= -1;
shortPrintFn = printIn;
}
if (elapsed < msPerMinute) {
return 'Just now';
}
if (elapsed < msPerHour) {
return shortPrintFn(Math.round(elapsed / msPerMinute), 'minute');
}
if (elapsed < msPerDay) {
return shortPrintFn(Math.round(elapsed / msPerHour), 'hour');
}
if (elapsed < msPerMonth) {
return shortPrintFn(Math.round(elapsed / msPerDay), 'day');
}
if (elapsed < msPerYear) {
return shortPrintFn(Math.round(elapsed / msPerMonth), 'month');
}
const date = new Date(previous);
const month = date.getMonth();
let monthAsString = 'Jan';
if (month === 1) {
monthAsString = 'Feb';
}
else if (month === 2) {
monthAsString = 'Mar';
}
else if (month === 3) {
monthAsString = 'April';
}
else if (month === 4) {
monthAsString = 'May';
}
else if (month === 5) {
monthAsString = 'June';
}
else if (month === 6) {
monthAsString = 'July';
}
else if (month === 7) {
monthAsString = 'August';
}
else if (month === 8) {
monthAsString = 'Sept';
}
else if (month === 9) {
monthAsString = 'Oct';
}
else if (month === 10) {
monthAsString = 'Nov';
}
else if (month === 11) {
monthAsString = 'Dec';
}
return `${date.getDate()} ${monthAsString} ${date.getFullYear()}`;
};
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