testing js app

node_modules/prompts/lib/util/clear.js

@@ -0,0 +1,22 @@
+'use strict';
+
+const strip = require('./strip');
+const { erase, cursor } = require('sisteransi');
+
+const width = str => [...strip(str)].length;
+
+/**
+ * @param {string} prompt
+ * @param {number} perLine
+ */
+module.exports = function(prompt, perLine) {
+  if (!perLine) return erase.line + cursor.to(0);
+
+  let rows = 0;
+  const lines = prompt.split(/\r?\n/);
+  for (let line of lines) {
+    rows += 1 + Math.floor(Math.max(width(line) - 1, 0) / perLine);
+  }
+
+  return erase.lines(rows);
+};