remove es6 default argument

Author: Pearce-Ropion

lib/rules/jsx-no-literals.js

@@ -21,8 +21,20 @@ const getText = require('../util/eslint').getText;
 // Rule Definition
 // ------------------------------------------------------------------------------
 
-function trimIfString(val) {
-  return typeof val === 'string' ? val.trim() : val;
+/**
+ * @param {unknown} value
+ * @returns {string | unknown}
+ */
+function trimIfString(value) {
+  return typeof value === 'string' ? value.trim() : value;
+}
+
+/**
+ * @param {boolean | undefined} value
+ * @returns {boolean}
+ */
+function valueOrTrue(value) {
+  return value !== undefined ? value : true;
 }
 
 const overridableElementPattern = '^[A-Z][\\w.]*$';
@@ -73,7 +85,7 @@ const commonPropertiesSchema = {
  *
  * @typedef RawOverrideOnlyConfig
  * @property {boolean} [allowElement]
- * @property {boolean} [applyToNestedElements]
+ * @property {boolean} [applyToNestedElements=true]
  *
  * @typedef {RawElementConfig & RawOverrideOnlyConfig} RawOverrideConfig
  *
@@ -112,7 +124,7 @@ const commonPropertiesSchema = {
  * @param {boolean} [handleElementOverrides=true]
  * @returns {Config}
  */
-function normalizeConfig(config, handleElementOverrides = true) {
+function normalizeConfig(config, handleElementOverrides) {
   /** @type {Config} */
   const normalizedConfig = {
     type: 'element',
@@ -125,7 +137,7 @@ function normalizeConfig(config, handleElementOverrides = true) {
     elementOverrides: {},
   };
 
-  if (handleElementOverrides) {
+  if (valueOrTrue(handleElementOverrides)) {
     if (config.elementOverrides) {
       normalizedConfig.elementOverrides = fromEntries(
         reduce(
@@ -138,7 +150,7 @@ function normalizeConfig(config, handleElementOverrides = true) {
                 type: 'override',
                 name: key,
                 allowElement: value.allowElement || false,
-                applyToNestedElements: value.applyToNestedElements !== undefined ? value.applyToNestedElements : true,
+                applyToNestedElements: valueOrTrue(value.applyToNestedElements),
               }),
             ]);