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set array index: slice vs Object.assign v3
(version: 1)
Comparing performance of:
splice vs Object.assign spread vs Object.assign slice vs Object.assign orig vs Slice mutable vs slice mutable spread
Created:
5 years ago
by:
Registered User
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Tests:
splice
var index = 2; var array = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]; var output = [ ...array.slice(0, index), 10, ...array.slice(index + 1) ];
Object.assign spread
var array = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]; var output = Object.assign([...array], {2: 10});
Object.assign slice
var array = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]; var output = Object.assign(array.slice(), {2: 10});
Object.assign orig
var array = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]; var output = Object.assign([...array], {2: 10});
Slice mutable
var array = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]; var newArray = array.slice(); newArray[2] = 10; var output = newArray;
slice mutable spread
var array = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]; var newArray = [...array]; newArray[2] = 10; var output = newArray;
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (6)
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Test case name
Result
splice
Object.assign spread
Object.assign slice
Object.assign orig
Slice mutable
slice mutable spread
Fastest:
N/A
Slowest:
N/A
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