Run results for: Iteration Suite

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 11_0_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.67 Safari/537.36

Browser: Chrome 87

Operating system: Mac OS X 11.0.1

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
Lodash FindKey	1157015.0 Ops/sec
Direct Access	808554500.0 Ops/sec
Object Entries	1795742.0 Ops/sec

HTML Preparation code:


<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Tests:

Lodash FindKey
var event = { "Note_On": {prefix: 0x90, createMessage(channel, note, velocity) {return [[this.prefix+channel-1, note, velocity]]}}, "Note_Off": {prefix: 0x80, createMessage(channel, note, velocity) {return [[this.prefix+channel-1, note, velocity]]}}, "Note_AT": {prefix: 0xA0, createMessage(channel, note, velocity) {return [[this.prefix+channel-1, note, velocity]]}}, "Bank_Select": {prefix: 0xB0, createMessage(channel, value) {return createCCMessage(this.prefix, 0x0, 0x20, channel, value)}}, "Mod_Wheel": {prefix: 0xB0, createMessage(channel, value) {return createCCMessage(this.prefix, 0x1, 0x21, channel, value)}}, "Breath": {prefix: 0xB0, createMessage(channel, value) {return createCCMessage(this.prefix, 0x2, 0x22, channel, value)}}, "Foot_Pedal": {prefix: 0xB0, createMessage(channel, value) {return createCCMessage(this.prefix, 0x4, 0x24, channel, value)}}, "Portamento_Time": {prefix: 0xB0, createMessage(channel, value) {return createCCMessage(this.prefix, 0x5, 0x25, channel, value)}}, "Data_Entry": {prefix: 0xB0, createMessage(channel, value) {return createCCMessage(this.prefix, 0x6, 0x26, channel, value)}}, "Channel_Volume": {prefix: 0xB0, createMessage(channel, value) {return createCCMessage(this.prefix, 0x7, 0x27, channel, value)}}, "Balance": {prefix: 0xB0, createMessage(channel, value) {return createCCMessage(this.prefix, 0x8, 0x28, channel, value)}}, "Pan": {prefix: 0xB0, createMessage(channel, value) {return createCCMessage(this.prefix, 0x0a, 0x2a, channel, value)}}, "Expression": {prefix: 0xB0, createMessage(channel, value) {return createCCMessage(this.prefix, 0x0b, 0x2b, channel, value)}}, "Effect_1": {prefix: 0xB0, createMessage(channel, value) {return createCCMessage(this.prefix, 0xc, 0x2c, channel, value)}}, "Effect_2": {prefix: 0xB0, createMessage(channel, value) {return createCCMessage(this.prefix, 0xd, 0x2d, channel, value)}} } let y = _.findKey(event, function(e, f) { return e.prefix === 0xB0 && f==="Effect_2" }) let y2 = event[y]
Direct Access
var event = { "Note_On": {prefix: 0x90, createMessage(channel, note, velocity) {return [[this.prefix+channel-1, note, velocity]]}}, "Note_Off": {prefix: 0x80, createMessage(channel, note, velocity) {return [[this.prefix+channel-1, note, velocity]]}}, "Note_AT": {prefix: 0xA0, createMessage(channel, note, velocity) {return [[this.prefix+channel-1, note, velocity]]}}, "Bank_Select": {prefix: 0xB0, createMessage(channel, value) {return createCCMessage(this.prefix, 0x0, 0x20, channel, value)}}, "Mod_Wheel": {prefix: 0xB0, createMessage(channel, value) {return createCCMessage(this.prefix, 0x1, 0x21, channel, value)}}, "Breath": {prefix: 0xB0, createMessage(channel, value) {return createCCMessage(this.prefix, 0x2, 0x22, channel, value)}}, "Foot_Pedal": {prefix: 0xB0, createMessage(channel, value) {return createCCMessage(this.prefix, 0x4, 0x24, channel, value)}}, "Portamento_Time": {prefix: 0xB0, createMessage(channel, value) {return createCCMessage(this.prefix, 0x5, 0x25, channel, value)}}, "Data_Entry": {prefix: 0xB0, createMessage(channel, value) {return createCCMessage(this.prefix, 0x6, 0x26, channel, value)}}, "Channel_Volume": {prefix: 0xB0, createMessage(channel, value) {return createCCMessage(this.prefix, 0x7, 0x27, channel, value)}}, "Balance": {prefix: 0xB0, createMessage(channel, value) {return createCCMessage(this.prefix, 0x8, 0x28, channel, value)}}, "Pan": {prefix: 0xB0, createMessage(channel, value) {return createCCMessage(this.prefix, 0x0a, 0x2a, channel, value)}}, "Expression": {prefix: 0xB0, createMessage(channel, value) {return createCCMessage(this.prefix, 0x0b, 0x2b, channel, value)}}, "Effect_1": {prefix: 0xB0, createMessage(channel, value) {return createCCMessage(this.prefix, 0xc, 0x2c, channel, value)}}, "Effect_2": {prefix: 0xB0, createMessage(channel, value) {return createCCMessage(this.prefix, 0xd, 0x2d, channel, value)}} } let y2 = event["Effect_2"]
Object Entries
var event = { "Note_On": {prefix: 0x90, createMessage(channel, note, velocity) {return [[this.prefix+channel-1, note, velocity]]}}, "Note_Off": {prefix: 0x80, createMessage(channel, note, velocity) {return [[this.prefix+channel-1, note, velocity]]}}, "Note_AT": {prefix: 0xA0, createMessage(channel, note, velocity) {return [[this.prefix+channel-1, note, velocity]]}}, "Bank_Select": {prefix: 0xB0, createMessage(channel, value) {return createCCMessage(this.prefix, 0x0, 0x20, channel, value)}}, "Mod_Wheel": {prefix: 0xB0, createMessage(channel, value) {return createCCMessage(this.prefix, 0x1, 0x21, channel, value)}}, "Breath": {prefix: 0xB0, createMessage(channel, value) {return createCCMessage(this.prefix, 0x2, 0x22, channel, value)}}, "Foot_Pedal": {prefix: 0xB0, createMessage(channel, value) {return createCCMessage(this.prefix, 0x4, 0x24, channel, value)}}, "Portamento_Time": {prefix: 0xB0, createMessage(channel, value) {return createCCMessage(this.prefix, 0x5, 0x25, channel, value)}}, "Data_Entry": {prefix: 0xB0, createMessage(channel, value) {return createCCMessage(this.prefix, 0x6, 0x26, channel, value)}}, "Channel_Volume": {prefix: 0xB0, createMessage(channel, value) {return createCCMessage(this.prefix, 0x7, 0x27, channel, value)}}, "Balance": {prefix: 0xB0, createMessage(channel, value) {return createCCMessage(this.prefix, 0x8, 0x28, channel, value)}}, "Pan": {prefix: 0xB0, createMessage(channel, value) {return createCCMessage(this.prefix, 0x0a, 0x2a, channel, value)}}, "Expression": {prefix: 0xB0, createMessage(channel, value) {return createCCMessage(this.prefix, 0x0b, 0x2b, channel, value)}}, "Effect_1": {prefix: 0xB0, createMessage(channel, value) {return createCCMessage(this.prefix, 0xc, 0x2c, channel, value)}}, "Effect_2": {prefix: 0xB0, createMessage(channel, value) {return createCCMessage(this.prefix, 0xd, 0x2d, channel, value)}} } let y2 for (const [key, value] of Object.entries(event)) { if (value.prefix === 0xB0 && key==="Effect_2"){ y2 = {[key]: value} } }

Run results for: Iteration Suite

Iterate through a collection using a variety of methods.

Lodash FindKey

Direct Access

Object Entries