How to use the moveCursor function from readline

Find comprehensive JavaScript readline.moveCursor code examples handpicked from public code repositorys.

readline.moveCursor is a function in Node.js that moves the cursor on a readline interface a specified number of rows and columns.

cli.cjs

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f.emitKeypressEvents(t, s), t.isTTY && t.setRawMode(true);
const C2 = (D2, { name: i }) => {
  if (String(D2) === "" && process.exit(0), !F2)
    return;
  let E2 = i === "return" ? 0 : -1, a2 = i === "return" ? -1 : 0;
  f.moveCursor(u2, E2, a2, () => {
    f.clearLine(u2, 1, () => {
      t.once("keypress", C2);
    });
  });

+ 3 other calls in file

example_sync.js

GitHub: NJUyd2001/2023_NJUspringE-

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if (editor.last_exit_status !== 0) {
  process.stderr.write("WARN: The editor exited with a non-zero status\n\n")
}

if (response.length === 0) {
  readline.moveCursor(process.stdout, 0, -1);
  process.stdout.write('Your message was empty, please try again. (press enter to launch your preferred editor)');
} else {
  process.stdout.write('Your Message:\n');
  process.stdout.write(response);

How does readline.moveCursor work?

readline.moveCursor is a Node.js function that moves the cursor position in the current output stream by a specified number of columns and rows. It does not modify the text currently displayed in the console.

test-readline-csi.js

GitHub: vladimir-andreevich/node.js-14-windows-7

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  assert.deepStrictEqual(writable.data, set[2]);
});


// Verify that moveCursor() throws on invalid callback.
assert.throws(() => {
  readline.moveCursor(writable, 1, 1, null);
}, /ERR_INVALID_CALLBACK/);


// Verify that moveCursor() does not throw on null or undefined stream.
assert.strictEqual(readline.moveCursor(null, 1, 1), true);

+ 11 other calls in file

listview.js

GitHub: akirco/nc

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//     process.stdout.write(prefix + depKey + "\t" + dependencies[key][depKey] + "\n");
//   });
// };

const printDependencies = () => {
  readline.moveCursor(process.stdout, 0, -1000); // 将光标移动到屏幕最上方
  readline.clearScreenDown(process.stdout); // 清除屏幕
  const key = keys[currentKeyIndex];
  console.log(key.toUpperCase() + ":");
  const depKeys = Object.keys(dependencies[key]);

+ 3 other calls in file

Ai Example

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const readline = require("readline");

const rl = readline.createInterface({
  input: process.stdin,
  output: process.stdout,
});

// Move the cursor up 2 lines and to the left 5 columns
rl.output.write("Hello\nWorld!\n");
readline.moveCursor(rl.output, -5, -2);

In this example, the readline.moveCursor method is used to move the cursor position of the output stream of the readline interface. It is used to move the cursor up 2 lines and to the left 5 columns after writing the strings 'Hello' and 'World!' to the output stream.