Arithmetic operators in JADE

问题

I'm using Jade template engine with NOde.js. I have two variables:

a = 0.0378
b = 0.1545

in Jade I do:

- var result = a + b*2

and I get a very strange number when I do #{result}

0.03780.309

It seems to concatenate the numbers as strings. Could someone tell me how can I use arithmetic operators in Jade?

Thanks

回答1:

Are you sure that a (and also b) is a number and not a string?

If it is a string you will need to to convert it to a number via parseFloat:

- var result = parseFloat(a)+parseFloat(b)*2

回答2:

    h2 Jade的 operation
    - var a = 8
    - var b = 2
    p #{+a+b}
    p #{+a-b}
    p #{+a*b}
    p #{+a/b}

来源：https://stackoverflow.com/questions/10368040/arithmetic-operators-in-jade