Peter-Paul Koch
Peter-Paul Koch

Peter-Paul Koch

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Browsers all the way down. Why is there a browser on this orange?

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Peter-Paul Koch
May 16, 2017 · 8 min read

Native form validation — part 3

In this third part of a three-part article we will conclude our study of native form validation in browsers. Part 1 discussed general UI considerations and CSS. Part 2 studied a few HTML properties and the JavaScript API.

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Peter-Paul Koch
May 9, 2017 · 7 min read

Native form validation — part 2

In this second part of a three-part article we will continue our study of native form validation in browsers. Part 1 discussed general UI considerations and CSS. Part 3 will discuss the native error messages and offer general recommendations to come to actually usable…

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Peter-Paul Koch
May 2, 2017 · 7 min read

Native form validation — part 1

After doing exhaustive research into modern CSS and JavaScript form validation, I present my conclusions in this series of articles. It will discuss native HTML validation messages, the CSS :invalid and :valid pseudo-classes, and the Constraint Validation API that is…

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