Add support for displaying default param values

3 files changed, 4 insertions, 0 deletions

diff --git a/packages/react-docs/src/components/signature.tsx b/packages/react-docs/src/components/signature.tsx
index 83fb1e246..1d3c90261 100644
--- a/packages/react-docs/src/components/signature.tsx
+++ b/packages/react-docs/src/components/signature.tsx
@@ -91,6 +91,7 @@ function renderParameters(
 ) {
     const params = _.map(parameters, (p: Parameter) => {
         const isOptional = p.isOptional;
+        const hasDefaultValue = !_.isUndefined(p.defaultValue);
         const type = (
             <Type
                 type={p.type}
@@ -103,6 +104,7 @@ function renderParameters(
             <span key={`param-${p.type}-${p.name}`}>
                 {p.name}
                 {isOptional && '?'}: {type}
+                {hasDefaultValue && ` = ${p.defaultValue}`}
             </span>
         );
     });
diff --git a/packages/react-docs/src/types.ts b/packages/react-docs/src/types.ts
index 2a300c164..3b4a57ad5 100644
--- a/packages/react-docs/src/types.ts
+++ b/packages/react-docs/src/types.ts
@@ -140,6 +140,7 @@ export interface Parameter {
     comment: string;
     isOptional: boolean;
     type: Type;
+    defaultValue?: string;
 }
 
 export interface TypeParameter {
diff --git a/packages/react-docs/src/utils/typedoc_utils.ts b/packages/react-docs/src/utils/typedoc_utils.ts
index e9035def0..9c89b135a 100644
--- a/packages/react-docs/src/utils/typedoc_utils.ts
+++ b/packages/react-docs/src/utils/typedoc_utils.ts
@@ -395,6 +395,7 @@ export const typeDocUtils = {
             name: entity.name,
             comment,
             isOptional,
+            defaultValue: entity.defaultValue,
             type,
         };
         return parameter;