はてなブックマーク

function doSomething(callback) { // Call the callback callback('stuff', 'goes', 'here'); } function foo(a, b, c) { // I'm the callback console.log(a + " " + b + " " + c); } doSomething(foo); var log = ''; function step1(callback) { log += 'step1 '; callback(); } function step2(callback) { log += 'step2 '; callback(); } function step3(callback) { log += 'step3 '; callback(); } function step4(callba