html5 email validation pattern

HTML5 New Properties : Property Describe Placeholder Provides a hint that the input field is empty when it is displayed and disappears when the focus input is obtained Required Specifies that the input field cannot be empty Pattern Rules Validate the mode of the input field ( Regular Expression ) Example :English, numeric

the required property is used in the field.Valid (valid) and invalid (invalid): Applies a different style depending on whether the control contains errors.In-range (within range) and Out-of-range (out of range): Determines whether an input value is out of range based on the Min and Max properties of the control. For example, you want to apply a light yellow background to a required input:required {Background-color:lightyellow;}Input:required:invalid {Background-color:orange;} 4,

jiugongge keyboard, which is inconvenient to inputDisadvantage 2: The old Android version (including the X5 Kernel used) will have a super chicken tail behind the input box. Fortunately, it will be removed after Android 4.4.4. But for disadvantage 2, we can fix it with the private pseudo elements of webkit: Copy XML/HTML Code to clipboard Input [type = number]:-webkit-inner-spin-button, Input [type = number]:-webkit-outer-spin-button { -Webkit-appearance: none; Appearance: none; M

HTML5 Practical application: How to make forms validation more friendlyHTML5 form validation is convenient for front-end people, but there are some flaws in the user experience, and the default prompts are unfriendly to the user and cannot accurately obtain the information they want. Fortunately, in the interface design, Daniel provides the Setcustomvalidilty met

I am sure you have some knowledge about HTML5 improvements. Next I will introduce two new input element types: email and url. Let's take a look at their benefits with the Code. If you are interested, refer to the previous blog post. We have discussed some HTML5 improvements, such as placeholder, prefetching, and webStorage, the following describes two new input e

Comments: You may be aware of the HTML5 improvements. Next I will introduce two new input element types: email and url. Let's take a look at their benefits with the Code. If you are interested, refer to the previous blog post. We have discussed some HTML5 improvements, such as placeholder, prefetching, and webStorage, the following describes two new input element

We've discussed some HTML5 improvements, such as placeholder,prefetching and WebStorage, and here are two new INPUT element types: email and URL. Let's follow the code to see their benefits: Syntax format: The new input type attribute replaces text with an email or URL: The code is as follows: For example [a-za-z0-9]{3,30}@[a-za-z0-9]+w*. (com|cn|org|ne

H5 adds a number of types, and attributes, to the form.Based on these new types and attributes H5 also provides us with a JS function to validate these data, the functions of these validation forms are in the Validitystate object , let's take a look at the use of these functions:Validitystate ObjectThe Validitystate object is obtained through the validity property, which has 8 properties, respectively, for 8 aspects of error

kernel used) after the input box will have a super chicken tail, after the Android 4.4.4 removed. However, for the disadvantage of two, we can use WebKit private pseudo-element to fix off: 123456 input[type=number]::-webkit-inner-spin-button,input[type=number]::-webkit-outer-spin-button{-webkit-appearance:none;appearance:none;margin:0;} Pattern PropertyPattern is used to verify the contents of form input, usually

In HTML5, a form can define an attribute required to trigger the default checksum mechanism, such as:type= "text"/>The error message that pops up defaults to English.If you want to customize the language hint, you can:type= "text" required oninvalid= "invalidmsg (this);" />The JS method is:function invalidmsg (textbox) { if (textbox.value = = ') { textbox.setcustomvalidity (' cannot be empty '); } Else if (textbox.validity.typeMismat