Run results for: copy object

Test name	Executions per second
Object spread	1609467.0 Ops/sec
Object.assign	1314740.6 Ops/sec
JSON	123356.6 Ops/sec

Object spread

const item = {
	"input": {
		"text": "how much is the fish",
		"intent": "Hyper",
		"intentScore": 1,
		"intentFlow": null,
		"slots": {},
		"nlu": {
			"intentMapperResults": {
				"finalIntentName": "Hyper",
				"finalIntentScore": 1,
				"finalIntentNegated": false,
				"finalIntentConfirmationSentence": null,
				"finalIntentDisambiguationSentence": null,
				"highestFlow": "1111111122222223333333444444",
				"intentFlow": "1111111122222223333333444444",
				"intentId": "1111111122222223333333444444",
				"detailedSlots": {},
				"tokens": [
					"how",
					"much",
					"is",
					"the",
					"fish"
				]
			},
			"mode": "TextOnly",
			"type": "howQuestion",
			"question": {
				"exists": false
			},
			"intentOutOfState": null,
			"currentTime": {
				"year": 2021,
				"month": 6,
				"day": 9,
				"hour": 18,
				"minute": 4,
				"second": 34,
				"milliseconds": 931,
				"weekday": 3,
				"dayOfWeek": "Wednesday",
				"ISODate": "2021-06-09T18:04:34+02:00",
				"plain": "June 9, 2021 6:04 PM",
				"grain": "second",
				"timezoneOffset": "Europe/Berlin"
			},
		},
		"context": {
			"best": {
				"stuff": "Hyper Hyper"
			},
			"lastText": "hi"
		}
	}
}


const final = {
	...item	
}

Object.assign

const item = {
	"input": {
		"text": "how much is the fish",
		"intent": "Hyper",
		"intentScore": 1,
		"intentFlow": null,
		"slots": {},
		"nlu": {
			"intentMapperResults": {
				"finalIntentName": "Hyper",
				"finalIntentScore": 1,
				"finalIntentNegated": false,
				"finalIntentConfirmationSentence": null,
				"finalIntentDisambiguationSentence": null,
				"highestFlow": "1111111122222223333333444444",
				"intentFlow": "1111111122222223333333444444",
				"intentId": "1111111122222223333333444444",
				"detailedSlots": {},
				"tokens": [
					"how",
					"much",
					"is",
					"the",
					"fish"
				]
			},
			"mode": "TextOnly",
			"type": "howQuestion",
			"question": {
				"exists": false
			},
			"intentOutOfState": null,
			"currentTime": {
				"year": 2021,
				"month": 6,
				"day": 9,
				"hour": 18,
				"minute": 4,
				"second": 34,
				"milliseconds": 931,
				"weekday": 3,
				"dayOfWeek": "Wednesday",
				"ISODate": "2021-06-09T18:04:34+02:00",
				"plain": "June 9, 2021 6:04 PM",
				"grain": "second",
				"timezoneOffset": "Europe/Berlin"
			},
		},
		"context": {
			"best": {
				"stuff": "Hyper Hyper"
			},
			"lastText": "hi"
		}
	}
}


const final = Object.assign(item)

JSON

const item = {
	"input": {
		"text": "how much is the fish",
		"intent": "Hyper",
		"intentScore": 1,
		"intentFlow": null,
		"slots": {},
		"nlu": {
			"intentMapperResults": {
				"finalIntentName": "Hyper",
				"finalIntentScore": 1,
				"finalIntentNegated": false,
				"finalIntentConfirmationSentence": null,
				"finalIntentDisambiguationSentence": null,
				"highestFlow": "1111111122222223333333444444",
				"intentFlow": "1111111122222223333333444444",
				"intentId": "1111111122222223333333444444",
				"detailedSlots": {},
				"tokens": [
					"how",
					"much",
					"is",
					"the",
					"fish"
				]
			},
			"mode": "TextOnly",
			"type": "howQuestion",
			"question": {
				"exists": false
			},
			"intentOutOfState": null,
			"currentTime": {
				"year": 2021,
				"month": 6,
				"day": 9,
				"hour": 18,
				"minute": 4,
				"second": 34,
				"milliseconds": 931,
				"weekday": 3,
				"dayOfWeek": "Wednesday",
				"ISODate": "2021-06-09T18:04:34+02:00",
				"plain": "June 9, 2021 6:04 PM",
				"grain": "second",
				"timezoneOffset": "Europe/Berlin"
			},
		},
		"context": {
			"best": {
				"stuff": "Hyper Hyper"
			},
			"lastText": "hi"
		}
	}
}


const final = JSON.parse(JSON.stringify(item));