带十进制 React Native 的加法不返回数字

Question

I am in a project building simple mathematic app with react native. but when my input is added with decimal number, it doesnt sum, but it just merge

var height = 56
const convertHeight = height+0.7

it return 560.7, instead of 56.7

Answer 1

Try this:

var height = 56
const convertHeight = height*1.0+0.7