合并ES6地图/集合的最简单方法? [英] Simplest way to merge ES6 Maps/Sets?
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问题描述
Object.assign
)?当我们在这里,ES6集合(如 Array.concat
)?解决方案
对于集合:
var merged = new Set .set1,... set2,... set3])
对于地图:
var merged = new Map([... map1,... map2,... map3])
请注意,如果多个地图具有相同的键,则合并映射的值将为最后一次合并地图。
Is there a simple way to merge ES6 Maps together (like Object.assign
)? And while we're at it, what about ES6 Sets (like Array.concat
)?
解决方案
For sets:
var merged = new Set([...set1, ...set2, ...set3])
For maps:
var merged = new Map([...map1, ...map2, ...map3])
Note that if multiple maps have the same key, the value of the merged map will be the value of the last merging map with that key.
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