Detailed explanation of new judgments about numbers in ES6

This time I will bring you a detailed explanation of the judgment of new numbers in ES6. What are the precautions about the judgment of new numbers in ES6. The following is a practical case, let's take a look.

    var binary = 0B010101; //声明二进制数;0B开头;
    var octol = 0O666; //声明八进制数;0O开头;(零与字母O)
    console.log(binary, octol) //十进制输出  21 438;
    //判断是否是数字:(整数小数都返回true;其他为false;)
    console.log(Number.isFinite(binary)); //ture;
    //判断是否是非数字;
    console.log(Number.isNaN(NaN)); //true;
    // 判读是否是整数
    console.log(Number.isInteger(11));
    //数的转换;
    let a = '9.18';
    console.log(Number.parseInt(a));
    console.log(Number.parseFloat(a));
    //最大安全整数:// 9007199254740991
    console.log(Number.MAX_SAFE_INTEGER);
    //最小安全整数:// -9007199254740991
    console.log(Number.MIN_SAFE_INTEGER);
    //安全整数判断;//false
    console.log(Number.isSafeInteger(9007199254740992)); //false;

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to the php Chinese website Other related articles!

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Detailed explanation of the expansion operator of ES6

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