Move the active line of the active file to a chosen file.

obsidian.templater.move-line.js

<%*
//v1.1: Choose where to move line to in file

//'first' will add to top of file. 'last' will add to bottom of file
let firstOrLastLine = 'last';

//Choose a specific line to move to underneath; overrules firstOrLastLine if true
const bChooseLine = false;

//After moving the line, open the file it was moved to
const bOpenFile = false;

const moveToFile = await tp.system.suggester((item) => item.path, this.app.vault.getMarkdownFiles(), false);
if(moveToFile) {
    let cmEditorAct = this.app.workspace.activeLeaf.view.sourceMode.cmEditor;
    const curLine = cmEditorAct.getCursor().line;
    cmEditorAct.setSelection({ line: curLine, ch: 0 }, { line: curLine, ch: 9999 });
    const selectedText = tp.file.selection();
    tR = selectedText;
    const curContent = await this.app.vault.read(moveToFile);
    let newContents;
    let selectLine;
    if(bChooseLine) {
        const arrayEachLine = curContent.split('\n');
        let arrayStrings = ['--End of File--', '--Beginning of File--'];
        let arrayValues = ['last_', 'first_'];
        arrayEachLine.forEach(eachItem => {
            if(eachItem != '') {
                arrayStrings.push(eachItem.slice(0,250));
                arrayValues.push(eachItem);
            }
        });
        selectLine = await tp.system.suggester(arrayStrings, arrayValues, false);
        if(selectLine == 'last_' || selectLine == 'first_') {
            if(selectLine == 'first_'){
                firstOrLastLine = 'first';
                newContents = selectedText + '\n' + curContent
            } else {
                firstOrLastLine = 'last';
                newContents = curContent + '\n' + selectedText
            }
        } else {
            newContents = curContent.replace('\n' + selectLine + '\n', '\n' + selectLine + '\n' + selectedText + '\n');
        }
    } else {
        if(firstOrLastLine == 'first'){
            newContents = selectedText + '\n' + curContent
        }
        else {
            newContents = curContent + '\n' + selectedText
        }
    }
    if(bChooseLine == false || selectLine) {
        await this.app.vault.modify(moveToFile, newContents);
        if(bOpenFile) {
            await this.app.workspace.openLinkText(moveToFile.basename, moveToFile.path, true);
            if(bChooseLine == false || selectLine == 'last_' || selectLine == 'first_') {
                cmEditorAct = this.app.workspace.activeLeaf.view.sourceMode.cmEditor;
                if(firstOrLastLine == 'first'){
                    cmEditorAct.setSelection({ line: 0, ch: 0 }, { line: 0, ch: 9999 });
                }
                else {
                    cmEditorAct.setSelection({ line: cmEditorAct.lastLine(), ch: 0 }, { line: cmEditorAct.lastLine(), ch: 9999 });
                }
            }
        }
        tR = '';
    }
}
%>