46 lines
933 B
HTML
46 lines
933 B
HTML
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Document</title>
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</head>
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<body>
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<script>
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//正经的数据类型转换
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//转string
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console.log(String(123123));
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console.log(String(true));
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//转number
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console.log(typeof Number("8898"));
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console.log(typeof Number("这就是厚度")); //NaN
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console.log(Number(true));
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console.log(Number(false));
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//转布尔(非0即为true)
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console.log(Boolean(0));
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console.log(Boolean(1));
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//隐式转换
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//转字符串 +
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// console.log(1+1); // 2 number
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// console.log( typeof(1+"1")); // 11 String
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//转数字 - * /
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// console.log(1+true); // 2 number
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// console.log(1+flse); // 1 number
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// console.log("12"-1); // 11 number
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// console.log("12"*'2'); // 24 number
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</script>
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</body>
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</html>
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