Benchmark: vector dot function vs prototype vs class

Tests:

function
function Vector(x, y) { this.x = x; this.y = y; this.dot = function(other) { return this.x * other.x + this.y * other.y; } } let i = 1000; let a = new Vector(0.5, 0.3); let b = new Vector(0.21, 0.63); let c = 0; while(--i) { c += a.dot(b); } return c;
prototype
function Vector(x, y) { this.x = x; this.y = y; } Vector.prototype.dot = function(other) { return this.x * other.x + this.y * other.y; } let i = 1000; let a = new Vector(0.5, 0.3); let b = new Vector(0.21, 0.63); let c = 0; while(--i) { c += a.dot(b); } return c;
class
class Vector { constructor(x, y) { this.x = x; this.y = y; } dot(other) { return this.x * other.x + this.y * other.y; } } let i = 1000; let a = new Vector(0.5, 0.3); let b = new Vector(0.21, 0.63); let c = 0; while(--i) { c += a.dot(b); } return c;

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vector dot function vs prototype vs class (version: 0)