array selector的意思|示意

An alternative way of concatenating two sequences is to construct a collection, for example an array, of sequences and then apply the SelectMany method, passing it the identity selector function.

连接两个序列的另一方法是构造序列的一个集合(例如一个数组)，然后应用SelectMany方法，将其传递给标识选择器函数。

Then, because the selector array hasn't been changed, the loop runs again with the prototype method and it throws an error because now the element isn't in the DOM.

然后，因为选择器数组没有改变，与原型法和循环再次运行它抛出一个错误，因为现在在DOM元素不是。

For example, fb: multi-friend-selector USES an array to let a user select multiple friends.

例如，fb： multi - friend - selector使用一个数组来让用户选择多个好友。