HTML 5.2: 4.13. Common idioms without dedicated elements

Firefox4+Safari4+Chrome61+Opera52+Edge79+Edge (Legacy)16+Internet Explorer10+Firefox Android5+Safari iOS3.2+Chrome Android61+WebView Android61+Samsung Internet8.0+Opera Android47+ 4.10.1 Introduction This section is non-normative. A form is a component of a web page that has form controls, such as text, buttons, checkboxes, range, or color picker controls. A user can interact with such a form, pro

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valid e-mail address: /^[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/

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“^[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$”

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“Selecting a form submission encoding”

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4.10 Forms — HTML5 : 4.10.22.5 Selecting a form submission encoding : _charset_

[teppeis]

HTML5 input type emailのバリデーション

[nagasama]

forms　FormData Interface