Replace a block ref in the current line with the actual text from the block ref. It replicates Roam's feature where you right-click a block ref and choose "Replace as text".

obsidian.templater.replace-block-ref-with-text.js

<%*
//v1.1: Changed to using the new "view.editor" instead of deprecated "view.sourceMode.cmEditor"

let thisFile = this.app.workspace.getActiveFile();
let thisFileCache = this.app.metadataCache.getFileCache(thisFile);
let embedsOnPage = thisFileCache.embeds;

if(embedsOnPage) {
    let cmEditorAct = this.app.workspace.activeLeaf.view.editor;
    let curLine = cmEditorAct.getCursor().line;
    foundEmbed = embedsOnPage.find(eachItem => {
        let embedLine = eachItem.position.start.line;
        if(embedLine == curLine){
            return true;
        } else { return false; }
    });
    if(foundEmbed) {
        let thisName = foundEmbed.link;
        let fileName = thisName.split('#^')[0];
        if(!fileName){fileName = thisFile.basename}
        let blockId = thisName.split('#^')[1];
        let myNewFile = this.app.metadataCache.getFirstLinkpathDest(fileName, '');
        if(myNewFile) {
            let newFileCache = this.app.metadataCache.getFileCache(myNewFile);
            let foundBlock = newFileCache.blocks[blockId];
            let newFileContents = await this.app.vault.cachedRead(myNewFile);
            let foundBlockValue = newFileContents.substring(foundBlock.position.start.offset, foundBlock.position.end.offset).replace('^' + blockId,'').trim();
            if(foundBlockValue) {
                cmEditorAct.setSelection({ line: curLine, ch: 0 }, { line: curLine, ch: 9999 });
                tR = tp.file.selection().replace(foundEmbed.original, foundBlockValue).split("\n").join("");
            }
        }
    }
}
%>

Thank you for this gist!
Could you please kindly also create one to do the same for block heading?