@fluentui/react-northstar/dist/es/utils/format.js

A themable React component library.

// Regex that finds { and } so they can be removed on a lookup for string format
var FORMAT_ARGS_REGEX = /[\{\}]/g;

// Regex that finds {#} so it can be replaced by the arguments in string format
var FORMAT_REGEX = /\{\d+\}/g;

/**
 * String format method, used for scenarios where at runtime you
 * need to evaluate a formatted string given a tokenized string. This
 * usually only is needed in localization scenarios.

 * @example
 * ```tsx
 * "I love {0} every {1}".format("CXP")
 * ```
 * will result in a Debug Exception.
 *
 * @public
 */
// eslint-disable-next-line @typescript-eslint/no-explicit-any
export function format(s) {
  for (var _len = arguments.length, values = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
    values[_key - 1] = arguments[_key];
  }
  var args = values;
  // Callback match function
  function replaceFunc(match) {
    // looks up in the args
    // eslint-disable-next-line @typescript-eslint/no-explicit-any
    var replacement = args[match.replace(FORMAT_ARGS_REGEX, '')];

    // catches undefined in nondebug and null in debug and nondebug
    if (replacement === null || replacement === undefined) {
      replacement = '';
    }
    return replacement;
  }
  return s.replace(FORMAT_REGEX, replaceFunc);
}
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