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@@ -1,7 +1,7 @@
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<!--
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<!--
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* @Author: your name
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* @Author: your name
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* @Date: 2021-08-20 16:17:21
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* @Date: 2021-08-20 16:17:21
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- * @LastEditTime: 2021-08-24 11:28:59
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+ * @LastEditTime: 2021-08-24 11:31:49
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* @LastEditors: Please set LastEditors
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* @LastEditors: Please set LastEditors
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* @Description:
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* @Description:
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* @FilePath: \md-\js\合并数组中的key值.md
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* @FilePath: \md-\js\合并数组中的key值.md
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@@ -113,10 +113,12 @@ const res = [...map.values()]
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- `currentValue`当前值,当前循环到的数组元素的实际值
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- `currentValue`当前值,当前循环到的数组元素的实际值
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- `index `下标,当前循环到的数组元素的下标值
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- `index `下标,当前循环到的数组元素的下标值
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- `array`原始数组,当前循环的原始数组
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- `array`原始数组,当前循环的原始数组
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-
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+> [!tip]
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+> 一个偏向于官方风格的示例,用来求数组中的和
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```js
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```js
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[0,1,2,3].reduce((accumulator,currentValue,index,array)=>{
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[0,1,2,3].reduce((accumulator,currentValue,index,array)=>{
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console.log(`accumulator:${accumulator}\ncurrentValue:${currentValue}\nindex:${index}`)
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console.log(`accumulator:${accumulator}\ncurrentValue:${currentValue}\nindex:${index}`)
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+ return accumulator + currentValue
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},-1)
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},-1)
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```
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```
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