How to sort superscript numbers? [closed]

I have some text blocks with footnotes but the order is sometimes not correct. The order depends on how the data comes from product.tech_datas. Sometimes it is correct, sometimes not. I need to sort it.

This is how I get the footnote.

const footnote = product.tech_datas.filter(techData => techData.datatype === 'DI'); if (isEmpty(footnote)) { return; }

The problem was that product.tech_datas can return footnotes in any order, e.g., ²⁾ first … and then ¹⁾. I probably need to write a sort function to sort ⁰¹²³…

I started with something but I am not sure how to continue...

const superscriptDigits = '⁰¹²³⁴⁵⁶⁷⁸⁹'; function superscriptToNumber(str: string): number { const normal = str .split('') .join(''); return Number(normal); }