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What does the html5 output tag mean? How to use the html5 output tag

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Aug 21, 2018 pm 02:20 PM

html5output

html5 What does the output tag mean? The methods of using the html5 output tag are all here. This article introduces the definition of the html5 output tag, as well as the method of using the html5 output tag (with code examples)

html5 output tag tag definition:

tag is displayed as the calculation result output (such as the output of executing a script).

html5 Attributes:

1.for specifies the id list of one or more elements, separated by spaces. These elements describe the relationship between the elements used in the calculation and the results of the calculation.

2.form specifies a list of ids of one or more forms to which the element belongs, separated by spaces.

3.name specifies the name of the element.

Based on the example:

Example:

<form oninput="x.value=parseInt(a.value)+parseInt(b.value)">0
<input type="range" id="a" value="50">100
+<input type="number" id="b" value="50">
=<output name="x" for="a b"></output>
</form>

Result:

What does the html5 output tag mean? How to use the html5 output tag

##3 attributes Since most browsers do not support it in the middle form, the output cannot be written in any other position. It can only be effective inside the form.

Note:

After being wrapped by form, the name and id representing the tag attributes have the same effect, including x.value, which can also be replaced by x.innerHTML.

In addition, the oninput event is an event triggered when the user inputs!

html5 Instructions for using the output tag:

tag is displayed as the calculation result output (such as the output of executing a script).

For example, to display the calculation results in the element:





out标签的用法


<form oninput="x.value=parseInt(a.value)+parseInt(b.value)">0
<input type="range" id="a" value="50">100
+<input type="number" id="b" value="50">
=<output name="x" for="a b"></output>
</form>

How to use the output element in a form:

<form action="form_action.asp" method="get" name="sumform">
<output name="sum"></output>
</form>
TIY
<!DOCTYPE HTML>
<html>
<head>
<script type="text/javascript">
function write_sum()
{
x=5
y=3
document.forms["sumform"]["sum"].value=x+y
}
</script>
</head>
<body onload="write_sum()">
<form action="form_action.asp" method="get" name="sumform">
<output name="sum"></output>
</form>
</body>
</html>

Differences between HTML 4.01 and HTML5

The tag is a new tag in HTML 5.

Browser support

Firefox, Opera, Chrome, and Safari browsers all support the tag.

Note: Internet Explorer does not support the tag.

【Related recommendations】

How to use the html5 audio tag? HTML5 auto-play implementation code example

#How to use the html address tag? Detailed explanation of how to use the html address tag

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