How to replace part of the text so that the other part remains unchanged?

Question

Node.js

I have this code in node.js:

const prettyMilliseconds = require("pretty-ms");
prettyMilliseconds(process.uptime, { keepDecimalsOnWholeSeconds: false });

and I need it so that the letter "h" is replaced by the string: `hours`, the string "m" by `minutes`, etc. How can I do that?

Answer 1

var str = 'h m';
str = str.replace('h', 'часов').replace('m', 'минут');