2024 05 28 append jsxelement to commandresponseelementouterhtml before saving to localstorage - bizkite-co/handterm GitHub Wiki

original file name: Codeium Chat - 6OV0U8X3Pz1VR3D79xxdIUnnFYclHlah.md summary: The user was trying to append a JSX.Element to commandResponseElement.outerHTML before saving it to localStorage but was encountering an issue where it was rendering as [object Object]. The assistant suggested using ReactDOMServer.renderToStaticMarkup from react-dom/server to convert the JSX.Element to an HTML string before appending it to the element's innerHTML. The assistant provided code snippets illustrating how to make this modification in the saveCommandResponseHistory function. date: 2024-05-28T16:20

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User at 4:20 pm, May 28, 2024

I am trying to append a JSX.Element to commandResponseElement.outerHTML before saving it to localStorage via this._persistence

 private saveCommandResponseHistory(command: string, response: string, status: number): string {
  const commandTime = new Date();
  const timeCode = this.createTimeCode(commandTime).join(':');
  let commandText = this.createCommandRecord(command, commandTime);
  const commandElement = createHTMLElementFromHTML(commandText);
  let commandResponseElement = document.createElement('div');
  commandResponseElement.dataset.status = status.toString();
  commandResponseElement.appendChild(commandElement);
  commandResponseElement.appendChild(createHTMLElementFromHTML(`<div class="response">${response}</div>`));

  // Only keep the latest this.commandHistoryLimit number of commands
  const wpms = this.wpmCalculator.getWPMs();
  console.log("WPMs:", wpms);
  let wpmSum = this.wpmCalculator.saveKeystrokes(timeCode);
  this.wpmCalculator.clearKeystrokes();
  commandResponseElement.innerHTML = commandResponseElement.innerHTML.replace(/{{wpm}}/g, ('_____' + wpmSum.toFixed(0)).slice(-4));

  commandText = commandText.replace(/{{wpm}}/g, ('_____' + wpmSum.toFixed(0)).slice(-4));

  if (!this._commandHistory) { this._commandHistory = []; }
  const commandResponse = commandResponseElement.outerHTML;
  this._commandHistory.push(commandResponse);
  const characterAverages = this.averageWpmByCharacter(wpms.charWpms);
  const slowestCharacters = this.WpmsToHTML(characterAverages.sort((a, b) => a.wpm - b.wpm).slice(0, 3), "slowest-characters");
  this._commandHistory.push(slowestCharacters.toString());

  this.setState(prevState => ({ outputElements: [...prevState.outputElements, commandResponse] }));
  this.setState(prevState => ({ outputElements: [...prevState.outputElements, slowestCharacters] }));

  this._persistence.setItem(`${LogKeys.Command}_${timeCode}`, commandResponseElement.outerHTML + "\n" + slowestCharacters);

  return commandResponse;

 }

But it is rendering out as [object Object]

Codeium at 4:20 pm, May 28, 2024

Appending a JSX.Element directly to .innerHTML or .outerHTML will not work because innerHTML and outerHTML expect a string representation of HTML, and a JSX.Element is an object representing a virtual DOM element in React.

To resolve this, you need to render the JSX.Element to a string. Since you are using React, you can use the ReactDOMServer.renderToStaticMarkup function to convert your React element to an HTML string.

First, ensure you have react-dom/server available:

npm install react-dom

Then, modify your saveCommandResponse2History function to use ReactDOMServer.renderToStaticMarkup:

import ReactDOMServer from 'react-dom/server';

// ... rest of your imports

private saveCommandResponseHistory(command: string, response: string, status: number): string {
  // ... existing code ...

  // Assuming slowestCharacters is a JSX.Element
  const slowestCharactersHTML = ReactDOMServer.renderToStaticMarkup(slowestCharacters);

  // Now you can append slowestCharactersHTML as a string to your element's innerHTML
  commandResponseElement.innerHTML += slowestCharactersHTML;

  // ... rest of your function
}

Remember to replace the slowestCharacters in the ReactDOMServer.renderToStaticMarkup(slowestCharacters) call with the actual JSX element you want to render to a string.

Keep in mind that ReactDOMServer.renderToStaticMarkup will not include any React internal attributes (like data-reactid), and the resulting HTML will be static, meaning it won't have any of the event handlers or dynamic behaviors of a React component. This should be fine for your use case, as you are storing the output as a static HTML in localStorage.

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