# benchmark immutable.js with my transducers lib: https://github.com/jlongster/transducers.js % node bench/immut.js Immutable map/filter (1000) x 5,497 ops/sec ±2.63% (91 runs sampled) transducer map/filter (1000) x 7,309 ops/sec ±0.73% (100 runs sampled) Immutable map/filter (100000) x 62.73 ops/sec ±0.85% (67 runs sampled) transducer map/filter (100000) x 80.15 ops/sec ±0.48% (71 runs sampled)