Fix typescript build errors

src/main.ts

@@ -2,7 +2,7 @@ import { line, group, translate, asSvg, svgDoc } from "@thi.ng/geom";
 import { $canvas } from "@thi.ng/rdom-canvas";
 import { reactive, sync, } from "@thi.ng/rstream";
 import { $compile, $input } from '@thi.ng/rdom'
-import { cycle, takeWhile, comp, mapIndexed, transduce, push, trace } from "@thi.ng/transducers"
+import { cycle, takeWhile, comp, mapIndexed, transduce, push } from "@thi.ng/transducers"
 
 const cellSize_ = "12"
 const xs_ = "101110100101100"
@@ -21,10 +21,6 @@ const cellSize = reactive(cellSize_).map(num => {
 const width = 420
 const height = 594
 
-// calculate available drawing area
-
-
-
 const size = [width, height]
 
 // build a list of start positions
@@ -37,7 +33,7 @@ const startPoints = (pattern: Iterable<number>, cellSize: number, maxCoord: numb
     ),
     push(),
     cycle(pattern)
-  )
+  ) as (readonly [number, number])[]
 
 const scene = sync({
   src: { cellSize, xs, ys, }
@@ -46,6 +42,7 @@ const scene = sync({
 
   const minPadding = cellSize
 
+  // calculate available drawing area
   const xCells = Math.floor((width - 2 * minPadding) / cellSize)
   const xPadding = (width - (xCells * cellSize)) / 2
 
@@ -56,35 +53,37 @@ const scene = sync({
   const yStarts = startPoints(ys, cellSize, height - 2 * yPadding)
 
   const yLines = xStarts.flatMap(
-    ([xCoord, val]: [number, number]) =>
+    ([xCoord, seed]) =>
       Array
         .from({ length: yCells })
-        .map((_, cell) => (cell + val) % 2 === 0 // start at the beginning or skip it
+        .map((_, cell) => (cell + seed) % 2 === 0 // start at the beginning or skip it
           ? line([xCoord, cell * cellSize], [xCoord, (cell + 1) * cellSize])
           : null)
         .filter(v => v != null)
   )
 
   const xLines = yStarts.flatMap(
-    ([yCoord, val]: [number, number]) =>
+    ([yCoord, seed]) =>
       Array
         .from({ length: xCells })
-        .map((_, cell) => (cell + val) % 2 === 0 // start at the beginning or skip it
+        .map((_, cell) => (cell + seed) % 2 === 0 // start at the beginning or skip it
           ? line([cell * cellSize, yCoord], [(cell + 1) * cellSize, yCoord])
           : null)
         .filter(v => v != null)
   )
 
-  return translate(
+  const scene = translate(
     group(
       { __background: '#eee', stroke: '#222' },
       [...yLines, ...xLines]
     ),
     [xPadding, yPadding]
   )
-})
 
-scene.map(scene => asSvg(svgDoc({ viewBox: `0 0 ${size[0]} ${size[1]}` }, scene))).subscribe(trace("svg"))
+  console.log(asSvg(svgDoc({ viewBox: `0 0 ${size[0]} ${size[1]}` }, scene)))
+
+  return scene
+})
 
 $compile(
   ["main",