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Javascript – Save to a console.log() variable

I’m starting with javascript now.
I’m looking for a tip or guidance as I can’t seem to get any further.
Do I need to save the result of line 70 of console.log(html) in a variable (const, let or var)?
Any tips on doing this? I tried arguments and return in the runRtfjs function, but it didn’t work.
I need to save it in a variable to later display it in HTML.

const jsdom = require("jsdom");
const {JSDOM} = jsdom;

const filertf =
    `{\rtf1\ansi\ansicpg1252\deff0\deflang1033{\fonttbl{\f0\fnil\fcharset0 Calibri;}}
    {\*\generator Msftedit 5.41.21.2510;}\viewkind4\uc1\pard\sa200\sl276\slmult1\lang9\f0\fs22 This \fs44 is \fs22 a \b simple \ul one \i paragraph \ulnone\b0 document\i0 .\par
    }`;

function stringToArrayBuffer(string) {
    const buffer = new ArrayBuffer(string.length);
    const bufferView = new Uint8Array(buffer);
    for (let i = 0; i < string.length; i++) {
        bufferView[i] = string.charCodeAt(i);
    }
    return buffer;
}

function runRtfjs(rtf, callback, errorCallback) {
    const virtualConsole = new jsdom.VirtualConsole();
    virtualConsole.sendTo(console);

    new JSDOM(`
    <script src="./node_modules/rtf.js/dist/WMFJS.bundle.js"></script>
    <script src="./node_modules/rtf.js/dist/EMFJS.bundle.js"></script>
    <script src="./node_modules/rtf.js/dist/RTFJS.bundle.js"></script>

    <script>
        RTFJS.loggingEnabled(false);
        WMFJS.loggingEnabled(false);
        EMFJS.loggingEnabled(false);

        try {
            const doc = new RTFJS.Document(rtfFile);

            const meta = doc.metadata();
            doc.render().then(function(htmlElements) {
                const div = document.createElement("div");
                div.append(...htmlElements);

                window.done(meta, div.innerHTML);
            }).catch(error => window.onerror(error))
        } catch (error){
            window.onerror(error)
        }
    </script>
    `, {
        resources: "usable",
        runScripts: "dangerously",
        url: "file://" + __dirname + "/",
        virtualConsole,
        beforeParse(window) {
            window.rtfFile = stringToArrayBuffer(rtf);
            window.done = function (meta, html) {
                callback(meta, html);
            };
            window.onerror = function (error) {
                errorCallback(error);
            };
        }
    });
};


runRtfjs(
    filertf,
    (meta, html) => {
        //console.log("Meta:");
        //console.log(meta);
        //console.log("Html:");
        console.log(html);
    },
    error => console.error(error)
    );

I tried arguments and return in the runRtfjs function, but it didn’t work.

Tags:

2

Answers


  1. 0

    Declare a variable outside the function to hold the result.
    Modify the runRtfjs function to set the variable with the HTML content.
    Use the variable after the function has executed.

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  2. 0

    Declear a variable outside the scope of the function and assign the value to it.

    If it’s to be re-used in the same scope you can use let instead of var

    var htmlData;
runRtfjs(
  filertf,
  (meta, html) => {
       htmlData = html;
       console.log(html);
       
  },
      error => console.error(error)
  );
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