Summary of various methods of jQuery manipulating input values_jquery

Get the selected value
Get the value of a group of radio selected items

Get the text of the selected item

The second element of the select drop-down box is the currently selected value

The second of the radio radio selection group elements are the currently selected values ​​

Get value:
Text box, text area:

Multiple selection box checkbox:

Radio selection group radio:

Drop-down box select:

Control form elements:
Text box, text area:

Multiple selection box checkbox:

Radio group radio:

Drop-down box select:

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In Jquery, use $("#id") to get the input element of the page, which is equivalent to document.getElementById("element"). However, what you get is a Jquery object, not a dom element object. Value is an attribute of the dom element object. Therefore, the value cannot be obtained using $("#id").value. The method of obtaining the value is as follows: Value: val = $("#id")[0].value; $( "#id")[0].value = "new value"; Assignment: $("#id")[0].value = "new value";
or $("#id").val( "new value"); val = $("#id").attr("value");

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jquery input text radio check select