Example
Change the number of visible rows for a text area:
document.getElementById("myTextarea").rows = "10";
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Definition and Usage
The rows property sets or returns the value of the rows attribute of a text area.
The rows attribute specifies the height (visible number of lines) in a text area.
Tip: You can also use the style.height property to set the height of a text area.
Tip: Use the cols property, or the style.width property to change the width of a text area.
Browser Support
The rows property is supported in all major browsers.
Syntax
Return the rows property:
textareaObject.rows
Set the rows property:
textareaObject.rows=number
Property Values
| Value | Description |
|---|---|
| number | Specifies the visible number of rows in the text area |
Technical Details
| Return Value: | A Number, representing the height of the text area, in characters |
|---|
More Examples
Example
Get the height of a text area, in characters:
var x = document.getElementById("myTextarea").rows;
The result of x will be:
4
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Example
Change the height of a text area using the style.height property:
document.getElementById("myTextarea").style.height = "250px";
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Example
Change the height and width of a text area using the cols and rows properties:
document.getElementById("myTextarea").rows = "10";
document.getElementById("myTextarea").cols = "100";
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Example
Change the height and width of a text area using the style.width and style.height properties:
document.getElementById("myTextarea").style.height = "100px";
document.getElementById("myTextarea").style.width =
"500px";
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Related Pages
HTML reference: HTML <textarea> rows attribute
< Textarea Object