Merge pull request #38489 from microsoft/removeDuplicateInfo

Remove duplicate JSDoc comments

src/compiler/core.ts

@@ -129,6 +129,22 @@ namespace ts {
         return map;
     }
 
+    /**
+     * Creates a new array with `element` interspersed in between each element of `input`
+     * if there is more than 1 value in `input`. Otherwise, returns the existing array.
+     */
+    export function intersperse<T>(input: T[], element: T): T[] {
+        if (input.length <= 1) {
+            return input;
+        }
+        const result: T[] = [];
+        for (let i = 0, n = input.length; i < n; i++) {
+            if (i) result.push(element);
+            result.push(input[i]);
+        }
+        return result;
+    }
+
     /**
      * Iterates through `array` by index and performs the callback on each element of array until the callback
      * returns a falsey value, then returns false.