Use Map.prototype.getOrInsertComputed more in the web/ folder

Author: Snuffleupagus

web/internal/tree_view.js

@@ -733,11 +733,9 @@ class TreeView {
         spinner.textContent = "Loading…";
         childrenEl.append(spinner);
         this.#onMarkLoading(1);
-        if (!this.#refCache.has(cacheKey)) {
-          this.#refCache.set(cacheKey, doc.getRawData({ ref }));
-        }
+
         this.#refCache
-          .get(cacheKey)
+          .getOrInsertComputed(cacheKey, () => doc.getRawData({ ref }))
           .then(result => {
             childrenEl.replaceChildren();
             this.#buildChildren(result, doc, childrenEl);

web/pdf_find_controller.js

@@ -217,11 +217,10 @@ function normalize(text, options = {}) {
 
       if (p2) {
         // Use the NFKC representation to normalize the char.
-        let replacement = NFKC_CHARS_TO_NORMALIZE.get(p2);
-        if (!replacement) {
-          replacement = p2.normalize("NFKC");
-          NFKC_CHARS_TO_NORMALIZE.set(p2, replacement);
-        }
+        const replacement = NFKC_CHARS_TO_NORMALIZE.getOrInsertComputed(
+          p2,
+          () => p2.normalize("NFKC")
+        );
         const jj = replacement.length;
         for (let j = 1; j < jj; j++) {
           positions.push(i - shift + j, shift - j);