Use strict equality by casting the variable to a string.

Author: adamghill

src/django_unicorn/static/unicorn/js/unicorn.js

@@ -91,7 +91,7 @@ export function getComponent(componentNameOrKey) {
     if (isEmpty(component)) {
       const _component = components[id];
 
-      if (_component.key == componentNameOrKey) {
+      if (String(_component.key) === String(componentNameOrKey)) {
         component = _component;
       }
     }

tests/js/unicorn/issue_728.test.js

@@ -0,0 +1,22 @@
+import test from "ava";
+import { getComponent } from "../../../django_unicorn/static/unicorn/js/unicorn.js";
+import { components } from "../../../django_unicorn/static/unicorn/js/store.js";
+import { getComponent as getComponentUtil } from "../utils.js";
+
+test("getComponent by key with type mismatch (existing string key, int lookup)", (t) => {
+    const component = getComponentUtil();
+    component.key = "123";
+    components[component.id] = component;
+
+    // Should find it even if we pass an integer
+    t.truthy(getComponent(123));
+});
+
+test("getComponent by key with type mismatch (existing int key, string lookup)", (t) => {
+    const component = getComponentUtil();
+    component.key = 456;
+    components[component.id] = component;
+
+    // Should find it even if we pass a string
+    t.truthy(getComponent("456"));
+});