[Addon-knob] Fix uncontrolled to controlled warning for booleans

Same as storybookjs#12322 to fix knob addon
ccpu · Oct 9, 2020 · 17f4ae2 · 17f4ae2
1 parent 59e41a0
commit 17f4ae2
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/addons/knobs/src/components/types/Boolean.tsx b/addons/knobs/src/components/types/Boolean.tsx
@@ -35,7 +35,7 @@ const BooleanType: FunctionComponent<BooleanTypeProps> & {
     name={knob.name}
     type="checkbox"
     onChange={(e) => onChange(e.target.checked)}
-    checked={knob.value}
+    checked={knob.value || false}
   />
 );