add stepearly/steplate

2026-07-13 22:35:15 -04:00 · 2025-02-21 09:06:33 +00:00
1 changed files with 23 additions and 0 deletions
@@ -2774,6 +2774,29 @@ export function stepalt(...groups) {
  return result;
 }

+export const stepearly = register(
+  'stepearly',
+  function (t, pat) {
+    if (!pat._steps) {
+      return pat;
+    }
+    return pat._late(Fraction(t).div(pat._steps));
+  },
+  true,
+  false,
+  (x) => x.stepJoin(),
+);
+
+export const steplate = register(
+  'steplate',
+  function (t, pat) {
+    return pat._stepearly(Fraction(0).sub(t));
+  },
+  true,
+  false,
+  (x) => x.stepJoin(),
+);
+
 /**
 * *Experimental*
 *