JQuery attribute Operation-Val () method

Instance

Set the value of the input field:

$ ("button"). Click (function () {$ (": Text"). Val ("Hello World");});

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Definition and usage

The Val () method returns or sets the value of the selected element.

The value of the element is set through the Value property. This method is mostly used for input elements.

If the method does not set a parameter, the current value of the selected element is returned.

Grammar

$ (selector). Val (value)

Parameters	Description
Value	Optional. Specifies the new content of the selected element.

Returns the Value property

Returns the value of the first matching element of the property of value.

Grammar

$ (selector). Val ()

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Set the value of the Value property

$ (selector). Val (value)

Parameters	Description
Value	Sets the value of the Value property.

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Use a function to set the value of the Value property

$ (selector). val (function (Index,oldvalue))

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Parameters	Description
function (Index,oldvalue)	Specifies the function that returns the value to be set. index -optional. Accepts the index position of the selector. oldvalue -Optional. Accepts the current Value property of the selector.

JQuery Property Operation Reference Manual

JQuery API Function Reference:

Http://api.jquery.com/val/?rdfrom=http%3A%2F%2Fdocs.jquery.com%2Fmw%2Findex.php%3Ftitle%3DAttributes%2Fval%26redirect%3Dno

JQuery attribute Operation-Val () method