How to use 'escape apostrophe javascript' in JavaScript

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export function escapeJavascript(text: string): string {
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  let result = text;
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  let escape;
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  let start = 0;
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  let i = 0;
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  for (; i < text.length; ++i) {
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    switch (text.charCodeAt(i)) {
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      case 47: // /
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        escape = "\\u002F";
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        break;
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      case 60: // <
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        escape = "\\u003C";
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        break;
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      case 62: // >
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        escape = "\\u003E";
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        break;
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      case 8232:
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        escape = "\\u2028";
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        break;
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      case 8233:
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        escape = "\\u2029";
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        break;
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      default:
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        continue;
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    }
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    if (i > start) {
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      escape = text.slice(start, i) + escape;
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    }
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    result = (start > 0) ? result + escape : escape;
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    start = i + 1;
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  }
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  if (start !== 0 && i !== start) {
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    return result + text.slice(start, i);
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  }
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  return result;
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}