Function toKeyValue

packages/common/upgrade/src/params.ts:291–310

* Serializes into key-value pairs. Logic taken from * https://github.com/angular/angular.js/blob/864c7f0/src/Angular.js#L1409

(obj: {[k: string]: unknown})

 * https://github.com/angular/angular.js/blob/864c7f0/src/Angular.js#L1409
 */
function toKeyValue(obj: {[k: string]: unknown}) {
  const parts: unknown[] = [];
  for (const key in obj) {
    let value = obj[key];
    if (Array.isArray(value)) {
      value.forEach((arrayValue) => {
        parts.push(
          encodeUriQuery(key, true) +
            (arrayValue === true ? '' : '=' + encodeUriQuery(arrayValue, true)),
        );
      });
    } else {
      parts.push(
        encodeUriQuery(key, true) +
          (value === true ? '' : '=' + encodeUriQuery(value as any, true)),
      );
    }
  }
  return parts.length ? parts.join('&') : '';
}

/**
 * We need our custom method because encodeURIComponent is too aggressive and doesn't follow