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#validation

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Inautilo<p><a href="https://mastodon.social/tags/Development" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Development</span></a> <a href="https://mastodon.social/tags/Pitfalls" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Pitfalls</span></a><br>The burden of custom form validations · When over-engineered form validations backfire <a href="https://ilo.im/16327e" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">ilo.im/16327e</span><span class="invisible"></span></a></p><p>_____<br><a href="https://mastodon.social/tags/Form" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Form</span></a> <a href="https://mastodon.social/tags/Validation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Validation</span></a> <a href="https://mastodon.social/tags/Browser" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Browser</span></a> <a href="https://mastodon.social/tags/Library" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Library</span></a> <a href="https://mastodon.social/tags/Framework" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Framework</span></a> <a href="https://mastodon.social/tags/WebComponents" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>WebComponents</span></a> <a href="https://mastodon.social/tags/DesignSystems" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DesignSystems</span></a> <a href="https://mastodon.social/tags/WebDev" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>WebDev</span></a> <a href="https://mastodon.social/tags/Frontend" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Frontend</span></a> <a href="https://mastodon.social/tags/HTML" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>HTML</span></a></p>
JP de Vooght<p>Great CACM article about UK's Horizon Post Office scandal <a href="https://mastodon.social/tags/Software" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Software</span></a> <a href="https://mastodon.social/tags/QA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>QA</span></a> <a href="https://mastodon.social/tags/Validation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Validation</span></a> <a href="https://mastodon.social/tags/Verification" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Verification</span></a> <a href="https://mastodon.social/tags/Society" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Society</span></a> <a href="https://cacm.acm.org/news/how-software-bugs-led-to-one-of-the-greatest-miscarriages-of-justice-in-british-history/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">cacm.acm.org/news/how-software</span><span class="invisible">-bugs-led-to-one-of-the-greatest-miscarriages-of-justice-in-british-history/</span></a></p>
Giuseppe Michieli<p><a href="https://mstdn.science/tags/Validation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Validation</span></a> of <a href="https://mstdn.science/tags/H5" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>H5</span></a> <a href="https://mstdn.science/tags/influenza" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>influenza</span></a> virus subtyping <a href="https://mstdn.science/tags/RTqPCR" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RTqPCR</span></a> <a href="https://mstdn.science/tags/assay" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>assay</span></a> and low prevalence of H5 <a href="https://mstdn.science/tags/detection" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>detection</span></a> in 2024-2025 influenza virus season, <a href="https://etidiohnew.blogspot.com/2025/03/validation-of-h5-influenza-virus.html" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">etidiohnew.blogspot.com/2025/0</span><span class="invisible">3/validation-of-h5-influenza-virus.html</span></a></p>
WIST Quotations<p><a href="https://wist.info/adams-john/9544/" rel="nofollow noopener noreferrer" target="_blank">A quotation from <b>John Adams</b></a></p><blockquote>The desire of the esteem of others is as real a want of nature as hunger — and the neglect and contempt of the world as severe a pain as the gout or stone.</blockquote><p><b>John Adams</b> (1735-1826) American lawyer, Founding Father, statesman, US President (1797-1801)<br>Essay (1790), “Discourses on Davila: A Series of Papers on Political History,” No. 4, Gazette of the United States</p> <p>Sourcing, notes: <a href="https://wist.info/adams-john/9544/" rel="nofollow noopener noreferrer" target="_blank">wist.info/adams-john/9544/</a></p><p><a href="https://my-place.social/search?tag=quote" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>quote</span></a> <a href="https://my-place.social/search?tag=quotes" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>quotes</span></a> <a href="https://my-place.social/search?tag=quotation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>quotation</span></a> <a href="https://my-place.social/search?tag=contempt" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>contempt</span></a> <a href="https://my-place.social/search?tag=ego" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ego</span></a> <a href="https://my-place.social/search?tag=emotionalpain" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>emotionalpain</span></a> <a href="https://my-place.social/search?tag=esteem" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>esteem</span></a> <a href="https://my-place.social/search?tag=pride" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>pride</span></a> <a href="https://my-place.social/search?tag=rejection" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>rejection</span></a> <a href="https://my-place.social/search?tag=respect" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>respect</span></a> <a href="https://my-place.social/search?tag=support" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>support</span></a> <a href="https://my-place.social/search?tag=validation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>validation</span></a></p>
C.<p>Guide to Interpreting Security Incident <a href="https://mindly.social/tags/Announcements" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Announcements</span></a>:</p><p>"extremely sophisticated attack" : The attackers put more time into the attack than we spent designing our defences.</p><p>"no evidence customer <a href="https://mindly.social/tags/data" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>data</span></a> was accessed" : We lack audit records and the logs have been rotated out.</p><p>"due to a misconfiguration issue" : We deployed with default <a href="https://mindly.social/tags/insecure" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>insecure</span></a> settings.</p><p>"possible for only a short window" : We didn't dig too deep to determine how far back the bug existed.</p><p>"crafted invalid request data" : We forgot to add input <a href="https://mindly.social/tags/validation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>validation</span></a>.</p><p>"supplementary fix" : We didn't understand the problem as well as we thought, so our previous fix was insufficient.</p><p>"may have been exploited" : We're positive they got away with data, but they deleted our <a href="https://mindly.social/tags/logs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>logs</span></a>.</p><p>"multiple threat actors" : Everyone was in our systems before we noticed.</p><p>"most customers are unaffected" : There are corner cases that aren't as <a href="https://mindly.social/tags/vulnerable" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>vulnerable</span></a>.</p><p>"error in a third-party component" : We forgot to update our dependencies.</p><p>"could lead to remote code execution" : You're <a href="https://mindly.social/tags/p0wned" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>p0wned</span></a>.</p><p>"malicious activity has been observed" : The issue has already appeared in the press.</p><p>"review equipment inventory to verify if devices require other mitigations" : You need to buy new stuff.</p><p>"remotely exploited to allow authentication bypass" : We forgot to require <a href="https://mindly.social/tags/login" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>login</span></a> for this function.</p><p>"not aware of any exploits in the wild" : The attackers aren't bragging on darkweb fora yet.</p><p><a href="https://mindly.social/tags/InfoSec" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>InfoSec</span></a> <a href="https://mindly.social/tags/security" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>security</span></a> <a href="https://mindly.social/tags/incident" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>incident</span></a> <a href="https://mindly.social/tags/obsolete" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>obsolete</span></a> <a href="https://mindly.social/tags/vendor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>vendor</span></a> <a href="https://mindly.social/tags/system" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>system</span></a> <a href="https://mindly.social/tags/configuration" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>configuration</span></a></p>
Thor A. Hopland<p>4 years ago I learned what an abusive <a href="https://snabelen.no/tags/narcissist" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>narcissist</span></a> is, and that is a junkie.</p><p>What psychiatry will not tell you, basically cus they put silk gloves on top of silk gloves, is that narcissism is getting high on <a href="https://snabelen.no/tags/validation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>validation</span></a>. What do I mean?</p><p>In your brain there's an incentive system and a reward system. One thing that triggers your reward system is validation. A narcissist will cultivate and distribute validation in what can only be described as "passing the needle".</p><p>It's the drug of self.</p>
Jens Oliver Meiert<p>“Buy standards-compliant&nbsp;websites”:</p><p>Just loved running into <span class="h-card" translate="no"><a href="https://w3c.social/@dontcallmeDOM" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>dontcallmeDOM</span></a></span>’s 2002 and <span class="h-card" translate="no"><a href="https://mastodon.cloud/@karlcow" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>karlcow</span></a></span>’s 2006 articles of that name, <a href="https://www.w3.org/QA/2002/07/WebAgency-Requirements" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">w3.org/QA/2002/07/WebAgency-Re</span><span class="invisible">quirements</span></a> and <a href="https://www.w3.org/blog/2006/buy-standards-compliant-web-si/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">w3.org/blog/2006/buy-standards</span><span class="invisible">-compliant-web-si/</span></a>.</p><p>They represent a spirit that has been missing for years—staying close to the standards by not only using new features but ensuring one used them&nbsp;right.</p><p>(I collect these and more articles on <span class="h-card" translate="no"><a href="https://mas.to/@frontenddogma" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>frontenddogma</span></a></span>, as in the conformance archives: <a href="https://frontenddogma.com/topics/conformance/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">frontenddogma.com/topics/confo</span><span class="invisible">rmance/</span></a>!)</p><p><a href="https://mas.to/tags/webdev" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>webdev</span></a> <a href="https://mas.to/tags/standards" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>standards</span></a> <a href="https://mas.to/tags/conformance" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>conformance</span></a> <a href="https://mas.to/tags/validation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>validation</span></a></p>
:rss: Hacker News<p>Show HN: Willpayforthis.com – Ideas people will pay for<br><a href="https://www.willpayforthis.com" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="">willpayforthis.com</span><span class="invisible"></span></a><br><a href="https://rss-mstdn.studiofreesia.com/tags/ycombinator" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ycombinator</span></a> <a href="https://rss-mstdn.studiofreesia.com/tags/market_research" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>market_research</span></a> <a href="https://rss-mstdn.studiofreesia.com/tags/ideas" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ideas</span></a> <a href="https://rss-mstdn.studiofreesia.com/tags/validation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>validation</span></a> <a href="https://rss-mstdn.studiofreesia.com/tags/business" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>business</span></a> <a href="https://rss-mstdn.studiofreesia.com/tags/demand_insights" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>demand_insights</span></a></p>
kalvn<p>Une alternative à Zod (et plein d'autres) pour faire de la validation de données en JavaScript. Valibot est apparemment plus modulaire et permet donc de réduire la taille du code nécessaire en fonction de ce que vous utilisez réellement.</p><p>🔗 <a href="https://valibot.dev/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">valibot.dev/</span><span class="invisible"></span></a></p><p><a href="https://mastodon.xyz/tags/validation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>validation</span></a> <a href="https://mastodon.xyz/tags/lib" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>lib</span></a> <a href="https://mastodon.xyz/tags/javascript" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>javascript</span></a></p>
Aral Balkan<p>😺 Fun Kitten¹ fact</p><p>Did you know that Kitten has a built-in HTML validator that checks your markup for validity and accessibility issues, etc.?</p><p>You’re informed of validation errors in not just terminal but also in your browser’s web developer panel. And, if you select the “Show validation issues on page” link from a validation error in the web developer panel, Kitten will show the validation errors in place on your page.</p><p>This helps me catch issues with my markup all the time and I hope it helps you too.</p><p>Enjoy!</p><p>:kitten:💕</p><p>¹ <a href="https://kitten.small-web.org" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">kitten.small-web.org</span><span class="invisible"></span></a></p><p><a href="https://mastodon.ar.al/tags/Kitten" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Kitten</span></a> <a href="https://mastodon.ar.al/tags/SmallWeb" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SmallWeb</span></a> <a href="https://mastodon.ar.al/tags/HTML" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>HTML</span></a> <a href="https://mastodon.ar.al/tags/HTMLValidator" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>HTMLValidator</span></a> <a href="https://mastodon.ar.al/tags/validation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>validation</span></a> <a href="https://mastodon.ar.al/tags/web" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>web</span></a> <a href="https://mastodon.ar.al/tags/dev" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>dev</span></a> <a href="https://mastodon.ar.al/tags/SmallTech" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SmallTech</span></a> <a href="https://mastodon.ar.al/tags/NodeJS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NodeJS</span></a> <a href="https://mastodon.ar.al/tags/JavaScript" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>JavaScript</span></a> <a href="https://mastodon.ar.al/tags/CSS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>CSS</span></a></p>
Inautilo<p><a href="https://mastodon.social/tags/Development" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Development</span></a> <a href="https://mastodon.social/tags/Techniques" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Techniques</span></a><br>More useful HTML number inputs · How to use the ‘step’ and ‘pattern’ attributes <a href="https://ilo.im/162c3w" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">ilo.im/162c3w</span><span class="invisible"></span></a></p><p>_____<br><a href="https://mastodon.social/tags/HTML" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>HTML</span></a> <a href="https://mastodon.social/tags/Form" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Form</span></a> <a href="https://mastodon.social/tags/Numbers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Numbers</span></a> <a href="https://mastodon.social/tags/Format" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Format</span></a> <a href="https://mastodon.social/tags/Regex" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Regex</span></a> <a href="https://mastodon.social/tags/Granularity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Granularity</span></a> <a href="https://mastodon.social/tags/Validation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Validation</span></a> <a href="https://mastodon.social/tags/Browser" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Browser</span></a> <a href="https://mastodon.social/tags/WebDev" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>WebDev</span></a> <a href="https://mastodon.social/tags/Frontend" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Frontend</span></a></p>

So, I learned something this past weekend about sequential exponential numbers, and how they can be verified through addition and subtraction no matter how high the exponents go.

Is this a known thing?

For example:

Every sequential ^2 has a once nested difference that increases by 2 and it's every odd number.

Every sequential ^3 has a twice nested difference of 6, which the first set of differences create a number which must then be subtracted from the next difference to see this pattern.

Every sequential ^4 has a thrice nested difference of 24, which the first set of differences create a number which must then be subtracted from the next set, followed by the third set to see this pattern.

Every sequential ^5 has a quaternary nested difference of 120, which means requires subtracting the sets four times to see the pattern.

So this validates ^6 at the fifth set of differences will provide a pattern of 720, ^7 at the sixth set will provide a pattern of 5040 and so on.

What is this called? Is there a simplified equation that shows this? Any and all help is much appreciated. Thanks!