(module
  (func $pow2
    (param $v f64)
    (result f64)
    local.get $v
    local.get $v
    f64.mul
  )
  (func $_dist (export "_dist")
    (param $x0 f64)
    (param $y0 f64)
    (param $x1 f64)
    (param $y1 f64)
    (result f64)

    local.get $x0
    local.get $x1
    f64.sub
    call $pow2

    local.get $y0
    local.get $y1
    f64.sub
    call $pow2

    f64.add
    f64.sqrt
  )
  (func (export "_point_circle")
  (param $px f64)
  (param $py f64)
  (param $cx f64)
  (param $cy f64)
  (param $cr f64)
  (result i32)

    local.get $px
    local.get $py
    local.get $cx
    local.get $cy

    call $_dist
    local.get $cr
    f64.lt
  )
)

My code work good inside JavaScript!

This code detect collision of one point and a circle.

but not work in WebAssembly Text Format when some values is less than Zero

how to fix this problem ? WebAssembly Text Format does't have negative ??