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node_modules/core-js/internals/get-json-replacer-function.js

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+'use strict';
+var uncurryThis = require('../internals/function-uncurry-this');
+var isArray = require('../internals/is-array');
+var isCallable = require('../internals/is-callable');
+var classof = require('../internals/classof-raw');
+var toString = require('../internals/to-string');
+
+var push = uncurryThis([].push);
+
+module.exports = function (replacer) {
+  if (isCallable(replacer)) return replacer;
+  if (!isArray(replacer)) return;
+  var rawLength = replacer.length;
+  var keys = [];
+  for (var i = 0; i < rawLength; i++) {
+    var element = replacer[i];
+    if (typeof element == 'string') push(keys, element);
+    else if (typeof element == 'number' || classof(element) == 'Number' || classof(element) == 'String') push(keys, toString(element));
+  }
+  var keysLength = keys.length;
+  var root = true;
+  return function (key, value) {
+    if (root) {
+      root = false;
+      return value;
+    }
+    if (isArray(this)) return value;
+    for (var j = 0; j < keysLength; j++) if (keys[j] === key) return value;
+  };
+};