Tip: even if the answer is listed here, don't ask the question if you don't fully understand the answer.
This isn't 100% a knowledge test. Questions that can't be answered should be followed by a discussion of how the answer could be discovered.
These are examples of questions that good hires would ask:
| class Pusher; end | |
| module GraphQL | |
| module Pro | |
| class BackgroundSubscriptions < Subscriptions | |
| alias :execute_synchronously :execute | |
| def execute(sub_id, event, object) | |
| SubscriptionUpdateJob.perform_later(sub_id, Base64.encode64(Marshal.dump(event)), object) | |
| end |
| import * as Ably from 'ably' | |
| import getConfig from 'next/config' | |
| const { publicRuntimeConfig } = getConfig() | |
| const config = { | |
| authUrl: publicRuntimeConfig.realtimeAuthUrl, | |
| // setting an Authorization header enables withCredentials, | |
| // needed for our cookie auth to the backend | |
| authHeaders: { | |
| authorization: 'none' |
| 'use strict'; | |
| !function(modules) { | |
| /** | |
| * @param {number} moduleId | |
| * @return {?} | |
| */ | |
| function __webpack_require__(moduleId) { | |
| if (installedModules[moduleId]) { | |
| return installedModules[moduleId].exports; | |
| } |
| checking for __linux__... yes | |
| checking for -lrt... yes | |
| checking for stdatomic.h... yes | |
| creating Makefile | |
| current directory: /usr/local/bundle/gems/scout_apm-3.0.0.pre25/ext/stacks | |
| make "DESTDIR=" clean | |
| current directory: /usr/local/bundle/gems/scout_apm-3.0.0.pre25/ext/stacks | |
| make "DESTDIR=" |
| Step 5/6 : RUN npm install -g pm2 | |
| ---> Running in 43e24ba37ed0 | |
| npm WARN registry Unexpected warning for https://registry.npmjs.org/: Miscellaneous Warning EINTEGRITY: sha1-QFUCsAfzGcP0cXXER0UnMA8qta0= integrity checksum failed when using sha1: wanted sha1-QFUCsAfzGcP0cXXER0UnMA8qta0= but got sha512-zr6QQnzLt3Ja0t0XI8gws2kn7zV2p0l/D3kreNvS6hFZhVU5g+uY/30l42jbgt0XGcNBEmBDGJR71J692V92tA==. (260 bytes) | |
| npm WARN registry Using stale package data from https://registry.npmjs.org/ due to a request error during revalidation. | |
| /usr/local/bin/pm2 -> /usr/local/lib/node_modules/pm2/bin/pm2 | |
| /usr/local/bin/pm2-dev -> /usr/local/lib/node_modules/pm2/bin/pm2-dev | |
| /usr/local/bin/pm2-docker -> /usr/local/lib/node_modules/pm2/bin/pm2-docker | |
| /usr/local/bin/pm2-runtime -> /usr/local/lib/node_modules/pm2/bin/pm2-runtime | |
| npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.4 (node_modules/pm2/node_modules/fsevents): | |
| npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.4: wanted {"os":"darwin"," |
| 404 -rw-r--r-- 1 root root 410433 Jun 4 12:00 application-4d0aabdb41b2ffd005f5fd834b2907da1698d7a426a7c4c0ec36602d5e1e49c6.js | |
| 104 -rw-r--r-- 1 root root 103187 Jun 4 12:00 application-4d0aabdb41b2ffd005f5fd834b2907da1698d7a426a7c4c0ec36602d5e1e49c6.js.gz | |
| 424 -rw-r--r-- 1 root root 433187 Apr 4 17:21 application-65a61040181f59b1707ffd11d9c94e087c256a38f7cf979b35515084bb109da2.js | |
| 112 -rw-r--r-- 1 root root 112842 Apr 4 17:21 application-65a61040181f59b1707ffd11d9c94e087c256a38f7cf979b35515084bb109da2.js.gz | |
| 404 -rw-r--r-- 1 root root 410410 Jun 7 11:38 application-6bb33460948612a3e9e2f3da9e3c150d4449e3b547db2ad17467cfa6dca074dc.js | |
| 104 -rw-r--r-- 1 root root 103185 Jun 7 11:38 application-6bb33460948612a3e9e2f3da9e3c150d4449e3b547db2ad17467cfa6dca074dc.js.gz |
| COPY config config | |
| COPY Rakefile Rakefile | |
| COPY app/models/application_record.rb app/models/application_record.rb | |
| COPY lib/transactional_mail.rb lib/transactional_mail.rb | |
| COPY vendor/assets vendor/assets | |
| COPY app/models/user.rb app/models/user.rb | |
| COPY app/assets app/assets |
| 2018-06-01T16:53:13Z service/timers:RWONHCRWYFM/b3b652bee086 [1] Puma starting in cluster mode... | |
| 2018-06-01T16:53:13Z service/timers:RWONHCRWYFM/b3b652bee086 [1] * Version 3.9.1 (ruby 2.4.1-p111), codename: Private Caller | |
| 2018-06-01T16:53:13Z service/timers:RWONHCRWYFM/b3b652bee086 [1] * Min threads: 5, max threads: 5 | |
| 2018-06-01T16:53:13Z service/timers:RWONHCRWYFM/b3b652bee086 [1] * Environment: staging | |
| 2018-06-01T16:53:13Z service/timers:RWONHCRWYFM/b3b652bee086 [1] * Process workers: 3 | |
| 2018-06-01T16:53:13Z service/timers:RWONHCRWYFM/b3b652bee086 [1] * Preloading application | |
| 2018-06-01T16:53:19Z service/timers:RWONHCRWYFM/b3b652bee086 [1] Use Ctrl-C to stop | |
| 2018-06-01T16:53:19Z service/timers:RWONHCRWYFM/b3b652bee086 [1] ! WARNING: Detected 1 Thread(s) started in app boot: | |
| 2018-06-01T16:53:19Z service/timers:RWONHCRWYFM/b3b652bee086 [1] ! #<Rack::MiniProfiler::FileStore::CacheCleanupThread:0x00000007718458@/usr/local/bundle/gems/rack-mini-profiler-1.0.0/lib/mini_profiler/storage/file_store.rb:60 sleep> - / |
| # Source this file to define all the relevant environment variables in Bash | |
| # for this profile. You may want to define the 'GUIX_PROFILE' environment | |
| # variable to point to the "visible" name of the profile, like this: | |
| # | |
| # GUIX_PROFILE=/path/to/profile ; \ | |
| # source /path/to/profile/etc/profile | |
| # | |
| # When GUIX_PROFILE is undefined, the various environment variables refer | |
| # to this specific profile generation. |
