关于百分数转换的问题 - WXOPEN Club | 微信小程序专业社区

从后台取到的小数转化为百分数(例如0.29转换成29%),某些小数进行乘法计算时,数据变为了浮点型,截图如下:

可参考 number 原型的一些有用函数

* Returns a string representing a number in fixed-point notation.

* [@param](/user/param) fractionDigits Number of digits after the decimal point. Must be in the range 0 - 20, inclusive.

*/

toFixed(fractionDigits?: number): string;

/**

* Returns a string containing a number represented in exponential notation.

* [@param](/user/param) fractionDigits Number of digits after the decimal point. Must be in the range 0 - 20, inclusive.

*/

toExponential(fractionDigits?: number): string;

/**

* Returns a string containing a number represented either in exponential or fixed-point notation with a specified number of digits.

* [@param](/user/param) precision Number of significant digits. Must be in the range 1 - 21, inclusive.

*/

toPrecision(precision?: number): string;