“of"与“from"运算符 [英] 'of' vs 'from' operator

问题描述

Observable.of 和 Observable.from 之间的唯一区别是参数格式吗?像 Function.prototype.call 和 Function.prototype.apply?

Is the only difference between Observable.of and Observable.from the arguments format? Like the Function.prototype.call and Function.prototype.apply?

Observable.of(1,2,3).subscribe(() => {})
Observable.from([1,2,3]).subscribe(() => {})

推荐答案

不太清楚.将数组传递给 Observable.from 时，它与 Observable.of 之间的唯一区别是传递参数的方式.

Not quite. When passing an array to Observable.from, the only difference between it and Observable.of is the way the arguments are passed.

但是，Observable.from 将接受 参数 即

要转换的可订阅对象、Promise、Observable-like、Array、iterable 或 array-like 对象

a subscribable object, a Promise, an Observable-like, an Array, an iterable or an array-like object to be converted

Observable.of 没有类似的行为 - 它总是只接受值并且不执行转换.

There is no similar behaviour for Observable.of - which always accepts only values and performs no conversion.

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