Waiting chain

const wait1 = (fn) => { setTimeout(() => { fn() }, 100) } const wait2 = (fn) => { setTimeout(() => { fn() }, 200) } const wait3 = (fn) => { setTimeout(() => { fn() }, 400) } wait1(() => { console.log("Finished wait1") wait2(() => { console.log("Finished wait2") wait3(() => { console.log("Finished wait3") }) }) });