If you don't specify it the input tag will implicitly be of type="text". Les attributs min et max Ces deux attributs permettent de limiter le nombre dans un intervalle défini. An input field for entering a number. Validating common input HTML5 also provides input types for other data, including email, url, number, range, date, or time.Most current web browsers support these features and handle input validation. Valid values are number and string.Setting this option to string can be useful if the underlying data is a string for precision reasons (for example, Doctrine uses strings for the decimal type). Description: Makes the element require a given minimum. Note too that the type attribute is no longer a required attribute itself. Contact Form 7 3.4 and higher provides two types of form-tag for number fields: number and range.These work the same except that they provide different types of user Validation rules are specified on form inputs via the following standard HTML5 attributes: type="email" type="url" type="number", with additional constraints via max, min and step attributes pattern="Reg(ular )?Exp(ression)?" Input can be automatically formatted as percentages or currency. Here Mudassar Ahmed Khan has explained with an example, how to perform Decimal TextBox Validation i.e. I’d like the min attribute for the Close Date input set to the Open Date’s current value. Input values are handled with a min and max range validation as well as decimal validation. max( value ) input[type=number] とは HTML5 の input[type=number] は数値だけを受け付ける入力部品です(デフォルトでは小数の入力も想定されています)。 これを使えば、スマートフォンなら自動でキーパッドが数値用になるらしいです。 the format that the number is stored on your underlying object. Validation of the number type will test to see if there is a typeMismatch , and, if the min, max, or step attributes are also present, will look for an rangeUnderflow , rangeOverflow or stepMismatch . #Cross Field Validation There are a lot of terms to describe this use case, cross-field validation is when a validation rule needs to use another field's value to validate the current field. A tutorial on HTML5's constraint validation API and how it can be used to enhance forms. Because of the way forms work , it is still possible for malicious users (or users with old browsers, even) to provide data outside the range specified by the min and max attributes. Both accomplish the same thing, albeit using slightly different User Interfaces (UI). Here you see an example including both a range It accepts most of the same properties as the HTML input, but works great on desktop devices and integrates with the When working with numerical input, you can use the attributes max, min, and step. A great alternative for HTML5 input-type numbers with a modern look. And it’s max value should be set to 1 month’s time from that date. In most cases you can leave out step as it defaults to 1. 要素のmin属性とmax属性を指定すると、 数値型や日付型の入力欄で入力できる最小値と最大値を指定することができます。 HTMLソース