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How to set input in html5 so that only numbers can be entered

青灯夜游

Sep 13, 2021 pm 04:09 PM

html5 input number

In HTML5, you can use the type attribute of the input tag to realize the function of inputting only numbers. You only need to set the value of the type attribute to "number", the syntax is "".

How to set input in html5 so that only numbers can be entered

The operating environment of this tutorial: Windows 7 system, HTML5 version, Dell G3 computer.

tag specifies an input field into which the user can enter data.

According to different type attributes, input fields have various forms. Input fields can be text fields, checkboxes, password fields, radio buttons, buttons, etc.

If you want to set the input to only input numbers, you only need to set the value of the type attribute to "number":

<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
	</head>
	<body>
		<input placeholder="文本,字母,数字等都可输入"/><br /><br />
		<input type="number" placeholder="只能输入数字"/>
	</body>
</html>

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Output result:

How to set input in html5 so that only numbers can be entered

Supplement: The type of input element--the value that can be set by the type attribute

Value	Description
#button	Define a clickable button (often used with JavaScript to launch a script).
checkbox	Define the checkbox.
color	Define the color picker.
date	Define date control (including year, month, day, excluding time).
datetime	Define date and time controls (including year, month, day, hour, minute, second, fraction of a second, based on UTC time zone).
datetime-local	Define date and time controls (including year, month, day, hour, minute, second, fraction of a second, without time zone) .
email	Defines the fields used for e-mail addresses.
file	Define the file selection field and "Browse..." button for file upload.
hidden	Define hidden input fields.
image	Define the image as the submit button.
month	Define month and year controls (without time zone).
number	Defines the field for entering numbers.
password	Define the password field (characters in the field will be masked).
radio	Define radio buttons.
#range	Defines a control for entering numbers where the exact value is not important (such as a slider control).
reset	Define the reset button (reset all form values to default values).
search	Define the text field used to enter the search string.
submit	Define the submit button.
tel	Defines the field for entering a phone number.
text	Default. Defines a single-line text field (default width is 20 characters).
time	Defines a control for entering time (without time zone).
url	Defines the field for entering the URL.
week	Define week and year controls (without time zone).

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