检查浏览器是否内置了HTML5表单验证？ [英] Check if a browser has built-in HTML5 form validation?

问题描述

如何检查浏览器是否具有内置的HTML5表单验证功能？通过这样做，我们不需要在可以自行验证表单的浏览器上应用jQuery表单验证功能。

How to check if a browser has built-in HTML5 form validation ability? By doing so, we don't need to apply jQuery form validation functions on browsers who can validate form by themselves.

[已解决]
基于ThinkingStiff的回答，这里是一个方法：

[Solved] Based on ThinkingStiff's answer, here is a way:

if (typeof document.createElement("input").checkValidity == "function") {
    alert("Your browser has built-in form validation!");
}

推荐答案

c $ c> checkValidity（）函数存在：

Simply check if the checkValidity() function exists:

演示： http://jsfiddle.net/ThinkingStiff/cmSJw/

function hasFormValidation() {

    return (typeof document.createElement( 'input' ).checkValidity == 'function');

};

像这样调用它：

Call it like this:

if( hasFormValidation() ) {
    //HTML5 Form Validation supported
};

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