compared with boolean type boolean will be converted to numeric false 0 true 1
and numeric type comparison will be converted to numeric type complex type will take valueOf method
so the first [] = = false = > [] = 0 [] does not rewrite valueOf by default, so toString array toString defaults to join, so finally "= = 0 primitive type and numeric comparison will take Number method, namely Number (" ") return 0 last zero true
the first reason is the same, but {} toString is" [object Object] "Number is NaN so {} = = false is false
the third complex type is converted to boolean type is true
the fourth complex type is compared with the complex type is the memory address, so [1] = = [1] is false
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