Initial project upload

frontend/node_modules/spacetime/src/methods/diff/one.js

@@ -0,0 +1,27 @@
+//increment until dates are the same
+const climb = (a, b, unit) => {
+  let i = 0
+  a = a.clone()
+  while (a.isBefore(b)) {
+    //do proper, expensive increment to catch all-the-tricks
+    a = a.add(1, unit)
+    i += 1
+  }
+  //oops, we went too-far..
+  if (a.isAfter(b, unit)) {
+    i -= 1
+  }
+  return i
+}
+
+// do a thurough +=1 on the unit, until they match
+// for speed-reasons, only used on day, month, week.
+const diffOne = (a, b, unit) => {
+  if (a.isBefore(b)) {
+    return climb(a, b, unit)
+  } else {
+    return climb(b, a, unit) * -1 //reverse it
+  }
+}
+
+export default diffOne