Tóm Tắt
HTML <input> type=”number”
The <input> tag with a type="number"
attribute creates a numeric input field.
A spinner allows the user to increment and decrement by a predefined value.
An <input> element of type number.
Click the spinner to increment or decrement the number input value.
Quantity (0 – 100, increments of 5)
<form action="/tutorial/action.html">
<fieldset>
<legend>Quantity (0 - 100, increments of 5)</legend>
<input type="number" name="number"
min = "0" max="100" step="5" value="30"><br /><br />
<input type="submit" value="Submit">
</fieldset>
</form>
Using nput type=”number”
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The <input type="number">
specifies a number input.
A number input only accepts numberic values.
When focused the field shows a spinner that increases or decreases the value by a given step size.
The following attributes specify number input restrictions:
- max – maximum value allowed
- min – minimum value allowed
- step – numeric interval size
- value – initial value
<input type="number">
Browser support
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Here is when type="number"
support started for each browser:
Chrome
6.0
Sep 2010
Firefox
29.0
Apr 2014
IE/Edge
10.0
Sept 2012
Opera
10.0
Aug 2009
Safari
5.0
Sep 2010
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