javascript - 使用点运算符调用javascript函数

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How to observe value changes in JS variables
                            
                                （3个答案）
                            
                    
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function getPercCalculated(x){
  return (x*9.3)/100;
}

var x = 10;
var perx = getPercCalculated(x);

取而代之的是，我想使用点运算符调用getPercCalculated

var perx = x.getPercCalculated()

有人能帮我吗..！！

最佳答案

Number.prototype.getPercCalculated= function(){
    return (this*9.3)/100;
};

这会将getPercCalculated附加到代码中的每个数字上