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Code Issues Releases Wiki Activity

docs(object): add object.assign

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ruanyf 2017-02-28 17:42:14 +08:00
parent b96a3fd1d9
commit 6496d019b7
1 changed files with 4 additions and 0 deletions
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docs/object.md
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@ -559,6 +559,7 @@ const DEFAULTS = {
function processContent(options) {
options = Object.assign({}, DEFAULTS, options);
console.log(options);
// ...
}
```
@ -576,6 +577,9 @@ const DEFAULTS = {
};
processContent({ url: {port: 8000} })
// {
// url: {port: 8000}
// }
```
上面代码中，原意是将`url.port`改成8000，`url.host`不变。实际结果却是`options.url`覆盖掉`DEFAULTS.url`,`url.host`不存在了。