angular - 我收到错误 TS2345 : Argument of type 'number' is not assignable to parameter of type 'string'

Question

我有以下代码并收到 TS2345 错误。我用过 Angular 7。

let totalAmount = quantity*rate;
let discountAmount = totalAmount - (totalAmount*discount)/100;
let finalValue = parseFloat(discountAmount - (discountAmount - (discountAmount * (100/(100+tax))))).toFixed(2).toString();
taxableAmount.setValue(finalValue);

Answer 1

你能去掉parseFloat吗？ parseFloat需要一个字符串作为参数，但你传递的是一个 number,

let totalAmount = quantity * rate;
let discountAmount = totalAmount - (totalAmount * discount) / 100;
let finalValue = (
  discountAmount -
  (discountAmount - discountAmount * (100 / (100 + tax)))
)
  .toFixed(2)
  .toString();

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