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A full list of JavaScript operators with examples

UptimeRobot
StatusCake
Pingdom
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Better Uptime
Hyperping
Uptime Kuma
Website health monitoring for your entire site, not just the homepage.
Which is more popular?
Based on our record, Oh Dear! seems to be a lot more popular than JavaScript Operator Lookup. While we know about 12 links to Oh Dear!, we've tracked only 1 mention of JavaScript Operator Lookup.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | joshwcomeau.com | ohdear.app |
| Pricing | — | |
| Platforms | — | |
| Company | — | Startup from Belgium · 1 - 9 employees · 2018 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of JavaScript Operator Lookup yet.
Oh Dear monitors the health of every website a team manages. Oh Dear checks uptime every minute from multiple locations and monitors SSL certificates, DNS records, domain expiration, scheduled tasks, broken links, mixed content, performance, Lighthouse, APIs, application health, ping, TCP ports,...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


No analysis of JavaScript Operator Lookup yet.
Overall verdict
Why this product is good
Recommended for
Oh Dear! is recommended for web developers, IT professionals, and business owners who need to ensure their websites are always operational and running efficiently. It's particularly useful for those managing multiple sites who want a centralized solution for monitoring and maintaining website health.
Walkthroughs and reviews on video.
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Adding your first site in Oh Dear
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing JavaScript Operator Lookup and Oh Dear!.
Oh Dear!'s answer:
Oh Dear!'s answer:
Oh Dear monitors the health of the entire website, not only whether a single URL responds. Oh Dear monitors uptime, SSL certificates, DNS records, domain expiration, scheduled tasks, broken links, mixed content, Lighthouse performance, APIs and application health. Oh Dear also gives teams one dashboard for every website they manage.
Oh Dear!'s answer:
Oh Dear is a strong fit for teams that manage multiple websites and want to find problems before clients or visitors report them. Every plan includes every monitoring feature, so teams can monitor website availability, technical health and content quality without assembling several separate tools. Broader observability platforms remain better suited to infrastructure telemetry, logs, traces and application performance monitoring.
Oh Dear!'s answer:
Oh Dear is built for developers, technical leads, DevOps teams and CTOs responsible for one or more websites. Oh Dear is especially useful for teams managing client websites, website portfolios, recurring reports and incident communication.
Oh Dear!'s answer:
Mattias Geniar and Freek Van der Herten founded Oh Dear in Belgium in 2018. Mattias Geniar brought an infrastructure and security perspective, while Freek Van der Herten brought a web-development perspective. Together, the founders built Oh Dear to monitor the complete health of a website rather than uptime alone. Oh Dear has continued to grow through pragmatic product development and direct customer feedback.
Oh Dear!'s answer:
Oh Dear is primarily built with PHP, Laravel and Livewire.
Share your experience with using JavaScript Operator Lookup and Oh Dear!. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


If you replace your || with ?? You should get the behaviour you are after. This is a good reference for what the operators do in js: https://joshwcomeau.com/operator-lookup. Source: about 5 years ago
Oh Dear sits in a crowded agency niche: uptime checks, SSL and DNS health, broken-link crawls, status pages, and often a scheduled Lighthouse or response-time layer under one login. When agencies outgrow a free ping tool, “Oh Dear... - Source: dev.to / 4 days ago
When you're building a Laravel application, you might want to send notifications to users via Telegram. This is useful for things like sending updates and alerts. For example, I'm subscribed to Telegram notifications on sites like Oh... - Source: dev.to / 9 months ago
For web-application monitoring, we’ve [1] gone the approach of outside-in monitoring. There’s many approaches to monitoring and depending on your role in a team, you might care more about the individual health of each server, or the... - Source: Hacker News / about 2 years ago
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