记录下一些学习的代码。
自己分别在node中执行，和浏览器中执行！！！！，居然不一样
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// 此时settimeout 延迟0s
console.log(1);
setTimeout(()=>{
console.log(2);
new Promise((resolve)=>{
console.log(4);
resolve();
}).then(()=>{
console.log(5);
});
},0);
new Promise((resolve)=>{
console.log(7);
resolve();
}).then(()=>{
console.log(8);
});
setTimeout(()=>{
console.log(9);
new Promise((resolve)=>{
console.log(11);
resolve();
}).then(()=>{
console.log(12);
})
},0);
|
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// 此时settimeout 延迟1s
console.log(1);
setTimeout(()=>{
console.log(2);
new Promise((resolve)=>{
console.log(4);
resolve();
}).then(()=>{
console.log(5);
});
},1);
new Promise((resolve)=>{
console.log(7);
resolve();
}).then(()=>{
console.log(8);
});
setTimeout(()=>{
console.log(9);
new Promise((resolve)=>{
console.log(11);
resolve();
}).then(()=>{
console.log(12);
})
},1);
|
这个时候，浏览器和node执行结果才会一致
