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A full list of JavaScript operators with examples

Stotles
GovWin IQ
123Tenders.co.uk
Bidanga
BidScout.co.uk
BidWolf
DealDash
New public tenders from the UK, EU, US and Canada in one search and one daily email, ranked for your business. $19 a month, cancel any time.

Which is more popular?
Based on our record, JavaScript Operator Lookup seems to be more popular. It has been mentioned 1 time since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | joshwcomeau.com | bidheron.com |
| Pricing | — | |
| Company | — | Startup from India · 1 - 9 employees |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of JavaScript Operator Lookup yet.
BidHeron is a public-tender search and alert service for small and mid-sized suppliers who sell to government. The problem: every market publishes tenders on its own portal (Find a Tender and Contracts Finder in the UK, TED in the EU, SAM.gov in the US, CanadaBuys in Canada), each with different...
What each product offers, as listed by its team.


Possible disadvantages
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing JavaScript Operator Lookup and BidHeron.
BidHeron's answer:
Small Business owners who have to look for tenders for bidding
BidHeron's answer:
Free Unlimited search and AI match Scores for each profile. No data is being stolen, or sold.
BidHeron's answer:
BidHeron collects new public tenders from Find a Tender, Contracts Finder, TED, SAM.gov and CanadaBuys. Search all four markets free, no account, or get the ones that fit your business emailed with a fit score. Pro is $19 a month.
Share your experience with using JavaScript Operator Lookup and BidHeron. 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
Tracking BidHeron since Sep 2026.
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