how delete a block with javascript?

[César Ivan Delgado Silva]

I want delete the selected block pressing the delete button... how can i do it?

[Rachel Fenichel]

You shouldn't need to do anything.  Blockly handles the backspace and delete keys, acting on the selected block.

Rachel

[Juan Pablo Sandoval Alcocer]

Hi Rachel,

I think Cesar wants to delete a block programatically.

Cheers,

Juan p.

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[Robert Stanica]

You're right I replied to the wrong group

On Thu, Jul 26, 2018 at 6:24 PM Juan Pablo Sandoval Alcocer <juam...@gmail.com> wrote:

Hi Rachel,

I think Cesar wants to delete a block programatically.

Cheers,

Juan p.

2018-07-26 16:06 GMT-04:00 'Rachel Fenichel' via Blockly <blo...@googlegroups.com>:

You shouldn't need to do anything.  Blockly handles the backspace and delete keys, acting on the selected block.

Rachel

On Thursday, July 26, 2018 at 10:11:53 AM UTC-7, César Ivan Delgado Silva wrote:

I want delete the selected block pressing the delete button... how can i do it?

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[Rachel Fenichel]

To delete a block programmatically: myBlock.dispose(true).  The argument determines whether children are also deleted.  Documentation is here.

However, you should not need to implement anything to have a block be deleted when you press the delete key.  If you need to implement that yourself, something in Blockly is broken.

[César Ivan Delgado Silva]

Well.. MyBlock.dispose() was good but, when undo. the block dont back last position... then I had to simulate the delete button

var e = new Event("Key down");

e.keyCode = 8;

document.dispatchEvent(e);

Blockly.onKeyDown_(e);

[Erik Pasternak]

I think what you want is something like

if (Blockly.selected && !Blockly.selected.workspace.isFlyout) {

Blockly.Events.setGroup(true);

Blockly.hideChaff();

Blockly.selected.dispose(/* heal */ true, true);

Blockly.Events.setGroup(false);

} That's what happens when the user hits delete with a block selected.

[Toha Assegaf]

how to delete block, and if i delete the block my temporary become decrement... PLEASE HELP....!!

[Navpreet Devpuri]

now i can despose my block by myBlock.dispose(true) and it goes to recyclebin but now my question is hpw to remove it from recyclebin also that mean i want to totaly remove a block from both workspace and recyclebin.
How can i do this ?

[Navpreet Devpuri]

look at this error 
https://github.com/google/blockly/issues/3940

[Beka Westberg]

Hello!

If you want to disable the trashcan you can do that by setting `maxTrashcanContents: 0` in the workspace config.

If you want to empty the trashcan you can do that using the emptyContents function.

If you want to remove a specific block from the trashcan, or disallow it from being added in the first place, I don't think that's currently possible :/ You could file a feature request for it though!

I hope that helps!

--Beka

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[R Jeevakumar]

You can use the `dispose` method on a block.

var block = workspace.getBlockById(e.blockId);
block.dispose();