gistfile1.txt

$ node index.js
ternary, true x 84,415,848 ops/sec ±2.47% (78 runs sampled)
ternary, false x 73,646,719 ops/sec ±5.86% (73 runs sampled)
&& and ||, true x 78,748,665 ops/sec ±2.80% (72 runs sampled)
&& and ||, false x 80,837,863 ops/sec ±1.84% (81 runs sampled)
Fastest is ternary, true

index.js

var Benchmark = require('benchmark');

var suite = new Benchmark.Suite;

var foo = true;
var bar = false;

suite.add('ternary, true', function() {
  foo ? 1 : 2;
}).add('ternary, false', function() {
  bar ? 1 : 2;
}).add('&& and ||, true', function() {
  foo && 1 || 2;
}).add('&& and ||, false', function() {
  bar && 1 || 2;
}).on('cycle', function(event) {
  console.log(String(event.target));
}).on('complete', function() {
  console.log('Fastest is ' + this.filter('fastest').map('name'));
}).run({ async: true });

package.json

{
  "dependencies": {
    "benchmark": "^2.1.0"
  }
}