TA貢獻1817條經驗 獲得超14個贊
非異步的鏈式調用
var obj = {};
obj.func1 = function(){ console.log('func1'); return this;
};
obj.func2 = function(){ console.log('func2'); return this;
};
obj.func1().func2();異步的鏈式調用(Promise)
function runFunc1(){ var p = new Promise(function(resolve,reject){ //異步操作
setTimeout(function(){ console.log('success runFunc1');
resolve('數據1');
},5000);
}); return p;
} function runFunc2(){//如果promise沒有運行在函數內部會立即執行
var p = new Promise(function(resolve,reject){ //異步操作
setTimeout(function(){ console.log('success runFunc2');
resolve('數據2');
},5000);
}); return p;
}
runFunc1()
.then(function(data){ console.log(data); return runFunc2();
})
.then(function(data){ console.log(data);
})舉報