How to set input in html so that only numbers can be entered
In HTML, you can use the type attribute to set the input to only input numbers. You only need to set the value of the type attribute to "number", and the syntax is "".
The operating environment of this tutorial: Windows 7 system, HTML5 version, Dell G3 computer.
In html, you can use the type attribute to set the input to only enter numbers .
The type attribute specifies the type of element to be displayed.
When the value of the type attribute is "number", you can define a field for specifically entering numbers (only numbers can be entered).
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> </head> <body> <input /><br><br> <input type="number" /> </body> </html>
Extended knowledge: the value of the type attribute
| Value | Description |
|---|---|
| button | Defines 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) . |
| 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). |
Recommended tutorial: "html video tutorial"
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