Safe string interpolation function

interpolate.js

/**
 * interpolate
 * @description replaces substrings within a string template with values in a context dictionary
 * @example interpolate("hello ${name}", { name: "Jerry" })
 * @param {string} template a template string
 * @param {Record<string, string>} context
 * @returns {string}
 */
const interpolate = (template, context) =>
  template.replaceAll(/\${([a-z_$][a-z0-9_$]+?)}/gi, (raw, name) =>
    typeof context[name] === "string" ? context[name] : raw,
  )