As shown in the last chapter, expressions are JavaScript phrases that can be evaluated to yield a value. Operators within an expression may have side effects, but in general, expressions don't do anything.
犀牛上说, 运算符会带来各种各样的副作用,side effects。运算符不是用来运算的么,怎么会带来副作用?
犀牛上说, 运算符会带来各种各样的副作用,side effects。运算符不是用来运算的么,怎么会带来副作用?
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