palindrome

packages/core/pattern.mjs

@@ -313,8 +313,7 @@ export class Pattern {
 
   rangex(min, max) {
     return this.range(Math.log(min), Math.log(max)).fmap(Math.exp);
-  } 
-
+  }
 
   // Assumes source pattern of numbers in range -1..1
   range2(min, max) {
@@ -616,6 +615,10 @@ export class Pattern {
     return new Pattern(query)._splitQueries();
   }
 
+  palindrome() {
+    this.every(2, rev);
+  }
+
   juxBy(by, func) {
     by /= 2;
     const elem_or = function (dict, key, dflt) {