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node_modules/core-js/modules/es.array.to-spliced.js

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+'use strict';
+var $ = require('../internals/export');
+var addToUnscopables = require('../internals/add-to-unscopables');
+var doesNotExceedSafeInteger = require('../internals/does-not-exceed-safe-integer');
+var lengthOfArrayLike = require('../internals/length-of-array-like');
+var toAbsoluteIndex = require('../internals/to-absolute-index');
+var toIndexedObject = require('../internals/to-indexed-object');
+var toIntegerOrInfinity = require('../internals/to-integer-or-infinity');
+
+var $Array = Array;
+var max = Math.max;
+var min = Math.min;
+
+// `Array.prototype.toSpliced` method
+// https://tc39.es/ecma262/#sec-array.prototype.tospliced
+$({ target: 'Array', proto: true }, {
+  toSpliced: function toSpliced(start, deleteCount /* , ...items */) {
+    var O = toIndexedObject(this);
+    var len = lengthOfArrayLike(O);
+    var actualStart = toAbsoluteIndex(start, len);
+    var argumentsLength = arguments.length;
+    var k = 0;
+    var insertCount, actualDeleteCount, newLen, A;
+    if (argumentsLength === 0) {
+      insertCount = actualDeleteCount = 0;
+    } else if (argumentsLength === 1) {
+      insertCount = 0;
+      actualDeleteCount = len - actualStart;
+    } else {
+      insertCount = argumentsLength - 2;
+      actualDeleteCount = min(max(toIntegerOrInfinity(deleteCount), 0), len - actualStart);
+    }
+    newLen = doesNotExceedSafeInteger(len + insertCount - actualDeleteCount);
+    A = $Array(newLen);
+
+    for (; k < actualStart; k++) A[k] = O[k];
+    for (; k < actualStart + insertCount; k++) A[k] = arguments[k - actualStart + 2];
+    for (; k < newLen; k++) A[k] = O[k + actualDeleteCount - insertCount];
+
+    return A;
+  }
+});
+
+addToUnscopables('toSpliced');