我有一个JavaScript数组,如:
[["$6"], ["$12"], ["$25"], ["$25"], ["$18"], ["$22"], ["$10"]]
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我将如何将单独的内部数组合并为:
["$6", "$12", "$25", ...]
Run Code Online (Sandbox Code Playgroud) 我有以下代码,应该为客户添加项目(如果它们尚不存在)。执行应该是并行的。
await Promise.all(
customers.map(async (customer) => {
return customer.items.map(async (item) => {
return new Promise(async (resolve) => {
const productExists = someArray.some(
(arrayValue) => arrayValue === item.id
);
if (!productExists) {
logger.info(
`customer item ${item.id} does not exist, creating...`
);
await createCustomerItem(item.id);
logger.info(`customer item ${item.id} created.`);
someArray.push(item.id);
} else {
logger.info(`customer item ${item.id} already exists, skipping...`);
}
resolve(true);
});
});
})
);
logger.info(`All items should now be present`);
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问题是createCustomerItem在以下情况下执行不会等待解决!productExists)
这是日志
customer item 32310 does not exist, creating... …Run Code Online (Sandbox Code Playgroud)