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How to change width in jquery

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Release： 2022-04-15 16:24:19

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Jquery method to change width: 1. Use "element object.width (changed width value)". This method can set the width of the selected element; 2. Use "element object.css("width ","The changed width value")", the css() method can set the value of the specified css attribute.

How to change width in jquery

The operating environment of this tutorial: windows10 system, jquery3.2.1 version, Dell G3 computer.

How jquery changes width

1. Use the width() method

width() method to set or return the width of the selected element.

When this method is used to return the width, it returns the width of the first matching element.

When this method is used to set the width, then set the width of all matching elements

The syntax is:

Return width:

$(selector).width()

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Set the width:

$(selector).width(value)

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Use a function to set the width:

$(selector).width(function(index,currentwidth))

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The example is as follows:

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>123</title>
<script src="js/jquery.min.js">
</script>
<script>
$(document).ready(function(){
$("button").click(function(){
$("div").width("100px");
});
});
</script>
</head>
<body>
<div style="height:100px;width:300px;padding:10px;margin:3px;border:1px solid blue;background-color:lightblue;"></div><br>
<button>改变div的宽度</button>
</body>
</html>

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Output result:

How to change width in jquery

2. Use the css() method with the width attribute

css() method to set or return one or more style attributes of the selected element.

To set the specified CSS property, please use the following syntax:

css("propertyname","value");

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The example is as follows:

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>123</title>
<script src="js/jquery.min.js">
</script>
<script>
$(document).ready(function(){
$("button").click(function(){
$("div").css("width","100px");
});
});
</script>
</head>
<body>
<div style="height:100px;width:300px;padding:10px;margin:3px;border:1px solid blue;background-color:lightblue;"></div><br>
<button>显示div的宽度</button>
</body>
</html>

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The output result is the same as the above example:

How to change width in jquery

Recommended related video tutorials: jQuery video tutorial

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