<!DOCTYPE html><html><head><meta charset="UTF-8"><title>js引用类型和基本类型、隐式类型转换以及强制类型转换面试题</title><style>body{margin:0;padding:0;}</style></head><body><script type="text/javascript">"use strict";var a = 1;var b = {};function show(x, y) {x = 2;y.num = 3;}show(a, b);console.log(a,b); //1 {num:3}if (null == undefined) {console.log("1")} else {console.log("2")} //1console.log(Number(undefined)) //NaNconsole.log(Number(null)) //0</script></body></html>
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