We are testing the performance of date-fns and momentJs against some basic operations of a dates library:
- Parsing a string to date object.
- Getting the day of the year.
- Manipulating a date, in this case we're adding one day to the current date.
- Displaying the date using the format 'YYYY-MM-DD'
- Query: using the isAfter operator.
npm install
npm run bench
The specs from the machine on which the tests were run:
$ node -v
v6.9.5
$ /usr/sbin/system_profiler SPHardwareDataType
Hardware Overview:
Model Name: MacBook Pro
Model Identifier: MacBookPro13,1
Processor Name: Intel Core i7
Processor Speed: 2.4 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache (per Core): 256 KB
L3 Cache: 4 MB
Memory: 16 GB
Parse string in ISO format to date.
2 tests completed.
moment x 28,827 ops/sec ±9.95% (75 runs sampled)
date-fns x 365,774 ops/sec ±2.30% (85 runs sampled)
Fastest is: date-fns
Get current day of year.
2 tests completed.
moment x 149,711 ops/sec ±1.23% (89 runs sampled)
date-fns x 644,809 ops/sec ±2.20% (82 runs sampled)
Fastest is: date-fns
Manipulate the current date adding one day to it.
2 tests completed.
moment x 394,877 ops/sec ±1.80% (87 runs sampled)
date-fns x 1,674,981 ops/sec ±2.79% (83 runs sampled)
Fastest is: date-fns
Display date using the format YYYY-MM-DD.
2 tests completed.
moment x 300,595 ops/sec ±2.42% (79 runs sampled)
date-fns x 221,146 ops/sec ±2.96% (81 runs sampled)
Fastest is: moment
Compare two dates using the operator isAfter.
2 tests completed.
moment x 274,728 ops/sec ±4.11% (82 runs sampled)
date-fns x 2,187,090 ops/sec ±2.55% (84 runs sampled)
Fastest is: date-fns
Launch with npm run bundle.
Size moment 231.434KB
Size moment-no-locales 49.467KB
Size date-fns 30.387KB
Props to @PepijnSenders for inspiring this test and his awesome work on The css-in-js battle