Rewriting Project

1 files changed, 32 insertions, 0 deletions

diff --git a/node_modules/core-js/modules/es.string.starts-with.js b/node_modules/core-js/modules/es.string.starts-with.js
new file mode 100644
index 0000000..e4fe655
--- /dev/null
+++ b/node_modules/core-js/modules/es.string.starts-with.js
@@ -0,0 +1,32 @@
+'use strict';
+var $ = require('../internals/export');
+var getOwnPropertyDescriptor = require('../internals/object-get-own-property-descriptor').f;
+var toLength = require('../internals/to-length');
+var notARegExp = require('../internals/not-a-regexp');
+var requireObjectCoercible = require('../internals/require-object-coercible');
+var correctIsRegExpLogic = require('../internals/correct-is-regexp-logic');
+var IS_PURE = require('../internals/is-pure');
+
+var nativeStartsWith = ''.startsWith;
+var min = Math.min;
+
+var CORRECT_IS_REGEXP_LOGIC = correctIsRegExpLogic('startsWith');
+// https://github.com/zloirock/core-js/pull/702
+var MDN_POLYFILL_BUG = !IS_PURE && !CORRECT_IS_REGEXP_LOGIC && !!function () {
+  var descriptor = getOwnPropertyDescriptor(String.prototype, 'startsWith');
+  return descriptor && !descriptor.writable;
+}();
+
+// `String.prototype.startsWith` method
+// https://tc39.github.io/ecma262/#sec-string.prototype.startswith
+$({ target: 'String', proto: true, forced: !MDN_POLYFILL_BUG && !CORRECT_IS_REGEXP_LOGIC }, {
+  startsWith: function startsWith(searchString /* , position = 0 */) {
+    var that = String(requireObjectCoercible(this));
+    notARegExp(searchString);
+    var index = toLength(min(arguments.length > 1 ? arguments[1] : undefined, that.length));
+    var search = String(searchString);
+    return nativeStartsWith
+      ? nativeStartsWith.call(that, search, index)
+      : that.slice(index, index + search.length) === search;
+  }
+});