Javascript整数，以逗号结尾，零

Question

如何在JavaScript中将.0附加到整数（300.0）而不转换为字符串？

var wholeNumber = 300.0;
var integer = 300;

console.log( wholeNumber ); //output 300
console.log( parseFloat(wholeNumber) ); //output 300
console.log( parseFloat(integer+".0") ); //output 300

我已经尝试了多种方法，但似乎不起作用，除非数字带有小数，例如300.1

Answer 1

  

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toFixed

var a = 300;
console.log(a.toFixed(1));