Gutenberg Functions and Hooks

functions.js

// Select a block.
wp.data.dispatch("core/block-editor").selectBlock(clientId);

// Update block attributes.
wp.data.dispatch("core/block-editor").updateBlockAttributes(clientId, { content: "<p>this is the new content</p>"});

// Replace a block.
wp.data.dispatch("core/block-editor").replaceBlock(
	clientId,
	wp.blocks.createBlock("core/image", {
		id: attachment_id,
		url: attachment_url,
		alt: "This is the Alt Text",
		caption: "This is the Caption",
	})
);