first commit

common/resources/client/utils/array/move-item-in-array.ts

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+import {clamp} from '../number/clamp';
+
+export function moveItemInArray<T = any>(
+  array: T[],
+  fromIndex: number,
+  toIndex: number
+): T[] {
+  const from = clamp(fromIndex, 0, array.length - 1);
+  const to = clamp(toIndex, 0, array.length - 1);
+
+  if (from === to) {
+    return array;
+  }
+
+  const target = array[from];
+  const delta = to < from ? -1 : 1;
+
+  for (let i = from; i !== to; i += delta) {
+    array[i] = array[i + delta];
+  }
+
+  array[to] = target;
+
+  return array;
+}