langpavel

function* cssRulesIterator() {
  for(const stylesheet of window.document.styleSheets) {
    for (const rule of stylesheet.cssRules) {
      yield rule.cssText;
    }
  }
}

[...cssRulesIterator()].filter(ruleText => true)

langpavel

/* eslint-disable @typescript-eslint/no-redeclare */
export function isHttpStatusSuccess(code: number): code is HTTP_STATUS_SUCCESS {
  return code >= 200 && code < 300;
}

export function isHttpStatusClientError(code: number): code is HTTP_STATUS_CLIENT_ERROR {
  return code >= 400 && code < 500;
}

export function isHttpStatusServerError(code: number): code is HTTP_STATUS_SERVER_ERROR {

langpavel

import { Kind } from 'graphql/language';
import { GraphQLScalarType } from 'graphql';

function serializeDate(value) {
  if (value instanceof Date) {
    return value.getTime();
  } else if (typeof value === 'number') {
    return Math.trunc(value);
  } else if (typeof value === 'string') {
    return Date.parse(value);