var c = 0
function printIt(){
console.log(c)
}
function plus(callback){
setTimeout(function(){
c +=1
callback()
},5000)
console.log("我沒有被阻塞~!")
}
plus(printIt)
=================
我覺得這樣更容易理解回調
function printIt(){
console.log(c)
}
function plus(callback){
setTimeout(function(){
c +=1
callback()
},5000)
console.log("我沒有被阻塞~!")
}
plus(printIt)
=================
我覺得這樣更容易理解回調
2016-02-24