Method removeAfter

src/List.js:337–365

(ownerID, level, index)

  }

  removeAfter(ownerID, level, index) {
    if (
      index === (level ? 1 << (level + SHIFT) : SIZE) ||
      this.array.length === 0
    ) {
      return this;
    }
    const sizeIndex = ((index - 1) >>> level) & MASK;
    if (sizeIndex >= this.array.length) {
      return this;
    }

    let newChild;
    if (level > 0) {
      const oldChild = this.array[sizeIndex];
      newChild =
        oldChild && oldChild.removeAfter(ownerID, level - SHIFT, index);
      if (newChild === oldChild && sizeIndex === this.array.length - 1) {
        return this;
      }
    }

    const editable = editableVNode(this, ownerID);
    editable.array.splice(sizeIndex + 1);
    if (newChild) {
      editable.array[sizeIndex] = newChild;
    }
    return editable;
  }
}

const DONE = {};