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hsmusic-wiki - HSMusic - static wiki software cataloguing collaborative creation
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-rw-r--r--src/util/html.js30
1 files changed, 23 insertions, 7 deletions
diff --git a/src/util/html.js b/src/util/html.js
index c5aa0569..cb4a84e8 100644
--- a/src/util/html.js
+++ b/src/util/html.js
@@ -150,15 +150,14 @@ export class Tag {
 
   #setAttributeFlag(attribute, value) {
     if (value) {
-      return this.attributes[attribute] = true;
+      this.attributes.set(attribute, true);
     } else {
-      delete this.attributes[attribute];
-      return false;
+      this.attributes.remove(attribute);
     }
   }
 
   #getAttributeFlag(attribute) {
-    return !!this.attributes[attribute];
+    return !!this.attributes.get(attribute);
   }
 
   #setAttributeString(attribute, value) {
@@ -166,15 +165,15 @@ export class Tag {
     // distinctly from null/undefined.
 
     if (value === undefined || value === null) {
-      delete this.attributes[value];
+      this.attributes.remove(attribute);
       return undefined;
     } else {
-      this.attributes[value] = String(value);
+      this.attributes.set(attribute, String(value));
     }
   }
 
   #getAttributeString(attribute) {
-    const value = this.attributes[attribute];
+    const value = this.attributes.get(attribute);
 
     if (value === undefined || value === null) {
       return undefined;
@@ -295,6 +294,23 @@ export class Attributes {
     return this.#attributes;
   }
 
+  set(attribute, value) {
+    if (value === null || value === undefined) {
+      this.remove(attribute);
+    } else {
+      this.#attributes[attribute] = value;
+    }
+    return value;
+  }
+
+  get(attribute) {
+    return this.#attributes[attribute];
+  }
+
+  remove(attribute) {
+    return delete this.#attributes[attribute];
+  }
+
   toString() {
     return Object.entries(this.attributes)
       .map(([key, val]) => {