Rewriting Project

1 files changed, 70 insertions, 0 deletions

diff --git a/node_modules/core-js/modules/es.array.splice.js b/node_modules/core-js/modules/es.array.splice.js
new file mode 100644
index 0000000..31debca
--- /dev/null
+++ b/node_modules/core-js/modules/es.array.splice.js
@@ -0,0 +1,70 @@
+'use strict';
+var $ = require('../internals/export');
+var toAbsoluteIndex = require('../internals/to-absolute-index');
+var toInteger = require('../internals/to-integer');
+var toLength = require('../internals/to-length');
+var toObject = require('../internals/to-object');
+var arraySpeciesCreate = require('../internals/array-species-create');
+var createProperty = require('../internals/create-property');
+var arrayMethodHasSpeciesSupport = require('../internals/array-method-has-species-support');
+var arrayMethodUsesToLength = require('../internals/array-method-uses-to-length');
+
+var HAS_SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('splice');
+var USES_TO_LENGTH = arrayMethodUsesToLength('splice', { ACCESSORS: true, 0: 0, 1: 2 });
+
+var max = Math.max;
+var min = Math.min;
+var MAX_SAFE_INTEGER = 0x1FFFFFFFFFFFFF;
+var MAXIMUM_ALLOWED_LENGTH_EXCEEDED = 'Maximum allowed length exceeded';
+
+// `Array.prototype.splice` method
+// https://tc39.github.io/ecma262/#sec-array.prototype.splice
+// with adding support of @@species
+$({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT || !USES_TO_LENGTH }, {
+  splice: function splice(start, deleteCount /* , ...items */) {
+    var O = toObject(this);
+    var len = toLength(O.length);
+    var actualStart = toAbsoluteIndex(start, len);
+    var argumentsLength = arguments.length;
+    var insertCount, actualDeleteCount, A, k, from, to;
+    if (argumentsLength === 0) {
+      insertCount = actualDeleteCount = 0;
+    } else if (argumentsLength === 1) {
+      insertCount = 0;
+      actualDeleteCount = len - actualStart;
+    } else {
+      insertCount = argumentsLength - 2;
+      actualDeleteCount = min(max(toInteger(deleteCount), 0), len - actualStart);
+    }
+    if (len + insertCount - actualDeleteCount > MAX_SAFE_INTEGER) {
+      throw TypeError(MAXIMUM_ALLOWED_LENGTH_EXCEEDED);
+    }
+    A = arraySpeciesCreate(O, actualDeleteCount);
+    for (k = 0; k < actualDeleteCount; k++) {
+      from = actualStart + k;
+      if (from in O) createProperty(A, k, O[from]);
+    }
+    A.length = actualDeleteCount;
+    if (insertCount < actualDeleteCount) {
+      for (k = actualStart; k < len - actualDeleteCount; k++) {
+        from = k + actualDeleteCount;
+        to = k + insertCount;
+        if (from in O) O[to] = O[from];
+        else delete O[to];
+      }
+      for (k = len; k > len - actualDeleteCount + insertCount; k--) delete O[k - 1];
+    } else if (insertCount > actualDeleteCount) {
+      for (k = len - actualDeleteCount; k > actualStart; k--) {
+        from = k + actualDeleteCount - 1;
+        to = k + insertCount - 1;
+        if (from in O) O[to] = O[from];
+        else delete O[to];
+      }
+    }
+    for (k = 0; k < insertCount; k++) {
+      O[k + actualStart] = arguments[k + 2];
+    }
+    O.length = len - actualDeleteCount + insertCount;
+    return A;
+  }
+});