js map

it2022-05-09  30

 

productSkuMap

_this.scanCdItems = new Map()

_this.scanCdItems.delete(item);

tmpCdItems.set(item[0],item[1]);

if (tmpCdItems.has(item)) {

for(var item of _this.scanCdItems)

scanCdItems.size

for(var key in _this.scanCdItems)

tmpCdItems.get(key)

tmpCdItems.get(noExistsKey) == undefined

 

转载于:https://www.cnblogs.com/ijunxiong/articles/9447116.html

相关资源:javascript的Map实现(高性能)

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