[Bug] - Error during delete a block by index

I’ve installed the v2.18 to try the new feature about deleting specific block by index. I can notice that now I see a warning if I try to delete a block by an invalid index…ok, but now I see this error:

Instead, if I try to delete though the same code the firt element It seems work fine…

Cannot read property 'lastInput' of undefined Steps to reproduce:

1. Create a new editor instance
2. As first block (for example), insert a paragraph with something write
3. As second one insert a paragraph too
4. call after adding the second one the following code: this.api.blocks.getBlockByIndex(1);

Expected behavior: The block should be removed.

Screenshots:

main.js is the file where I call the delete function.

Device, Browser, OS: Chrome v83.0.4103.61, Windows 10

Editor.js version: 2.18

[stephenrichard]

@ranemihir I reproduce the issue with those steps :

1. Create a new editor instance (with sample data, 2 blocks is enough)
2. Do not edit, focus or add a block in the editor
3. Call editorInstance.blocks.delete(1) (I use a button next to the editor to delete a specific blocks) Note that any valid index triggers the error, an invalid or missing id triggers a simple warning

[gohabereg]

Resolved by #1218