[英]Multiple calls to node.js
Say I have an API that either (1) runs a loop and adds 1 to a variable initialized at 0 every second, and returns the variable after 3 seconds; 假设我有一个API,要么(1)运行一个循环,然后向每秒初始化为0的变量加1,然后在3秒后返回该变量; or (2) uses setInterval() to add 1 every second and then setTimeout() after 3 seconds to return the variable (after 3 seconds).
或(2)使用setInterval()每秒钟加1,然后在3秒后使用setTimeout()返回变量(3秒后)。 If I run the API twice in sequence, is the first method more inefficient since it'll take 6 seconds to finish running both calls, while the latter will just take 3?
如果我依次运行API两次,第一种方法是否效率较低,因为完成两个调用都需要6秒钟才能完成,而后者只需3秒钟? What are the benefits of doing it in the (1) way?
以(1)方式进行操作有什么好处?
First approach blocks your code execution. 第一种方法阻止您的代码执行。 Forget it as a nightmare!
忘了做噩梦吧! There are no benefits doing it that way.
这样做没有任何好处。
Node.js environment is asynchronous , so stick to it's async nature as much as possible. Node.js环境是异步的 ,因此请尽可能坚持其异步性质。
And yes, please paste some code. 是的,请粘贴一些代码。 Things may vary depending of your actual problem.
根据您的实际问题,情况可能会有所不同。
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