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This article mainly shows you "js how to use the + operator", the content is easy to understand, clear, hope to help you solve your doubts, the following let Xiaobian lead you to study and learn "js how to use the + operator" this article.

+ operator

What? + operator? I've known it since the first grade.

Yes, of course, but it has nothing to do with arithmetic operators:

Const four = 2 + 2

Another use can be seen as "converting a given expression to Number", but it may also reveal other interesting use cases.

Even if you can get these results using the Number () constructor, in some cases, using the + operator seems cleaner.

For the last example, we will override the valueOf () method of the random object, and the + operator "gets" its value by converting its value to Number.

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