How to set input in html5 so that only numbers can be entered
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 "".
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>
Output result:
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) . |
| 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"
The above is the detailed content of How to set input in html5 so that only numbers can be entered. For more information, please follow other related articles on the PHP Chinese website!
The Future of HTML: Evolution and TrendsMay 13, 2025 am 12:01 AMThe future of HTML will develop in a more semantic, functional and modular direction. 1) Semanticization will make the tag describe the content more clearly, improving SEO and barrier-free access. 2) Functionalization will introduce new elements and attributes to meet user needs. 3) Modularity will support component development and improve code reusability.
Why are HTML attributes important for web development?May 12, 2025 am 12:01 AMHTMLattributesarecrucialinwebdevelopmentforcontrollingbehavior,appearance,andfunctionality.Theyenhanceinteractivity,accessibility,andSEO.Forexample,thesrcattributeintagsimpactsSEO,whileonclickintagsaddsinteractivity.Touseattributeseffectively:1)Usese
What is the purpose of the alt attribute? Why is it important?May 11, 2025 am 12:01 AMThe alt attribute is an important part of the tag in HTML and is used to provide alternative text for images. 1. When the image cannot be loaded, the text in the alt attribute will be displayed to improve the user experience. 2. Screen readers use the alt attribute to help visually impaired users understand the content of the picture. 3. Search engines index text in the alt attribute to improve the SEO ranking of web pages.
HTML, CSS, and JavaScript: Examples and Practical ApplicationsMay 09, 2025 am 12:01 AMThe roles of HTML, CSS and JavaScript in web development are: 1. HTML is used to build web page structure; 2. CSS is used to beautify the appearance of web pages; 3. JavaScript is used to achieve dynamic interaction. Through tags, styles and scripts, these three together build the core functions of modern web pages.
How do you set the lang attribute on the tag? Why is this important?May 08, 2025 am 12:03 AMSetting the lang attributes of a tag is a key step in optimizing web accessibility and SEO. 1) Set the lang attribute in the tag, such as. 2) In multilingual content, set lang attributes for different language parts, such as. 3) Use language codes that comply with ISO639-1 standards, such as "en", "fr", "zh", etc. Correctly setting the lang attribute can improve the accessibility of web pages and search engine rankings.
What is the purpose of HTML attributes?May 07, 2025 am 12:01 AMHTMLattributesareessentialforenhancingwebelements'functionalityandappearance.Theyaddinformationtodefinebehavior,appearance,andinteraction,makingwebsitesinteractive,responsive,andvisuallyappealing.Attributeslikesrc,href,class,type,anddisabledtransform
How do you create a list in HTML?May 06, 2025 am 12:01 AMTocreatealistinHTML,useforunorderedlistsandfororderedlists:1)Forunorderedlists,wrapitemsinanduseforeachitem,renderingasabulletedlist.2)Fororderedlists,useandfornumberedlists,customizablewiththetypeattributefordifferentnumberingstyles.
HTML in Action: Examples of Website StructureMay 05, 2025 am 12:03 AMHTML is used to build websites with clear structure. 1) Use tags such as, and define the website structure. 2) Examples show the structure of blogs and e-commerce websites. 3) Avoid common mistakes such as incorrect label nesting. 4) Optimize performance by reducing HTTP requests and using semantic tags.
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment
SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.
Dreamweaver CS6
Visual web development tools
MinGW - Minimalist GNU for Windows
This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.
Notepad++7.3.1
Easy-to-use and free code editor
