i5ting / i5ting/wechat-dev-with-nodejs
一道promise 的题，求解
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- Dominant language
- JavaScript
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Description
之前看到的一道题，现在还不知道答案，求解
### What’s the difference between promises below.
```
doSomething().then(function () {
return doSomethingElse();
});
```
```
doSomething().then(function () {
doSomethingElse();
});
```
```
doSomething().then(doSomethingElse());
```
```
doSomething().then(doSomethingElse);
```
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