diff --git a/lib/parse.js b/lib/parse.js
index 84d142f..f1069a4 100644
--- a/lib/parse.js
+++ b/lib/parse.js
@@ -169,7 +169,7 @@ var json_parse = function (options) {
       at += 1;
       return ch;
     },
-    number = function () {
+    number = function (schema) {
       // Parse a number value.
 
       var number,
@@ -206,6 +206,10 @@ var json_parse = function (options) {
         error('Bad number');
       } else {
         if (BigNumber == null) BigNumber = require('bignumber.js');
+        if (schema === `bigint`) return _options.useNativeBigInt
+                                  ? BigInt(number)
+                                  : new BigNumber(number);
+        if (schema === `number`) return number; 
         if (Number.isSafeInteger(number))
           return !_options.alwaysParseAsBig
             ? number
@@ -299,8 +303,10 @@ var json_parse = function (options) {
       error("Unexpected '" + ch + "'");
     },
     value, // Place holder for the value function.
-    array = function () {
+    array = function (schema) {
       // Parse an array value.
+      
+      if (!Array.isArray(schema)) schema = []; 
 
       var array = [];
 
@@ -311,8 +317,10 @@ var json_parse = function (options) {
           next(']');
           return array; // empty array
         }
+        let i = 0; 
         while (ch) {
-          array.push(value());
+          array.push(value(schema[i]));
+          if (schema.length > 0 && i < schema.length) i++;
           white();
           if (ch === ']') {
             next(']');
@@ -324,8 +332,10 @@ var json_parse = function (options) {
       }
       error('Bad array');
     },
-    object = function () {
+    object = function (schema) {
       // Parse an object value.
+      
+      if (typeof schema !== `object`) schema = {}; 
 
       var key,
         object = Object.create(null);
@@ -365,7 +375,7 @@ var json_parse = function (options) {
               object[key] = value();
             }
           } else {
-            object[key] = value();
+            object[key] = value(schema?.[key]);
           }
 
           white();
@@ -380,35 +390,35 @@ var json_parse = function (options) {
       error('Bad object');
     };
 
-  value = function () {
+  value = function (schema) {
     // Parse a JSON value. It could be an object, an array, a string, a number,
     // or a word.
 
     white();
     switch (ch) {
       case '{':
-        return object();
+        return object(schema);
       case '[':
-        return array();
+        return array(schema);
       case '"':
         return string();
       case '-':
-        return number();
+        return number(schema);
       default:
-        return ch >= '0' && ch <= '9' ? number() : word();
+        return ch >= '0' && ch <= '9' ? number(schema) : word();
     }
   };
 
   // Return the json_parse function. It will have access to all of the above
   // functions and variables.
 
-  return function (source, reviver) {
+  return function (source, reviver, schema) {
     var result;
 
     text = source + '';
     at = 0;
     ch = ' ';
-    result = value();
+    result = value(schema);
     white();
     if (ch) {
       error('Syntax error');