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duration - Time duration utilities
Formerly part of es5-ext project.
Installation
Node.js
$ npm install duration
Browser
Can be bundled for browser with help of modules-webmake
Example usage:
var Duration = require("duration");
var duration = new Duration(new Date(2000, 6, 7), new Date(2010, 8, 13, 3, 23, 8, 456));
console.log("Years: ", duration.years);
console.log("Months: ", duration.months);
console.log("Days: ", duration.days);
console.log("Hours: ", duration.hours);
console.log("Minutes: ", duration.minutes);
console.log("Seconds: ", duration.seconds);
console.log("Milliseconds: ", duration.milliseconds);
console.log("Trailing months: ", duration.month);
console.log("Trailing days: ", duration.day);
console.log("Trailing hours: ", duration.hour);
console.log("Trailing minutes: ", duration.minute);
console.log("Trailing seconds: ", duration.second);
console.log("Trailing milliseconds: ", duration.millisecond);
console.log("Default string representation: ", duration.toString());
console.log("Alternative string representation: ", duration.toString(1));
console.log("Custom string representation: ", duration.toString("H: %Hs m: %M"));
Output:
Years: 10
Months: 122
Days: 3720
Hours: 89283
Minutes: 5357003
Seconds: 321420188
Milliseconds: 321420188456
Trailing months: 2
Trailing days: 6
Trailing hours: 3
Trailing minutes: 23
Trailing seconds: 8
Trailing milliseconds: 456
Default string representation: 10y 2m 6d 03:23:08.456
Alternative string representation: 10y 2m 6d 3h 23m 8s 456ms
Custom string representation: H: 89283 m: 23
Duration(from[, to])
Main module is both constructor and factory method, and can be used either way.
from
and to
are expected to be JavaScript Date objects. to
is optional, and if not provided it defaults to current time.
Duration.prototype properties
years
Returns full years of the duration
months
Returns full months of the duration
days
Returns full days of the duration
hours
Returns full hours of the duration
seconds
Returns full seconds of the duration
minutes
Returns full minutes of the duration
milliseconds
Returns milliseconds of the duration
year
Same as years
. Returns full years of the duration
month
Returns trailing months of the duration
day
Returns trailing days of the duration
hour
Returns trailing hours of the duration
minute
Returns trailing minutes of the duration
second
Returns trailing seconds of the duration
millisecond
Returns trailing seconds of the duration
valueOf()
Same as milliseconds
. Returns milliseconds of the duration
toString([mode[, threshold]])
Returns readable representation of the duration.
When invoked without arguments (defaults to mode=0), returns as:
10y 2m 6d 03:23:08.456
When invoked with mode 1
, returns alternative representation:
10y 2m 6d 3h 23m 8s 456ms
Representation returned by default modes can be customized with threshold setting that trims lowest units:
duration.toString();
duration.toString(0, 1);
duration.toString(0, 2);
duration.toString(1);
duration.toString(1, 1);
duration.toString(1, 2);
toString(format)
When invoked with string, formats the duration according to given pattern, where:
%y
- duration.year
%m
- duration.month
%d
- duration.day
%H
- duration.hour
%M
- duration.minute
%S
- duration.second
%L
- duration.millisecond
%ms
- duration.months
%ds
- duration.days
%Hs
- duration.hours
%Ms
- duration.minutes
%Ss
- duration.seconds
%Ls
- duration.milliseconds
%sign
- If duration is negative outputs -
otherwise empty string
Tests
$ npm test