Home >
Web Front-end >
JS Tutorial >
Summary of common jquery operations on radio button, multi-select box, text box and other operations_javascript skills
Summary of common jquery operations on radio button, multi-select box, text box and other operations_javascript skills
var sex=$("input[name='sex']:checked").val(); //Get a set of radio selected items The value of var item=$("#sel option:selected").text(); //Get the text of the selected item in select var option_num=$('#sel').val(); // Get the Select project index $ ("#SEL") [0] .selectEdindex = 1; // The second element of the selecting drop -down box is the current selection value $ ("input [name = 'sexx sex ']").get(1).checked=true; //The second element of the radio radio selection group is the currently selected value
Or set the default selection for the radio button: $("input[name='sex']").each(function(){ if($(this).val()= =s){ $(this).attr("checked", true); 🎜>
Jquery sets the default selected item in the drop-down list (select) based on the value value
Copy code
The code is as follows: < ;script> function bao(s) { txt.value=s; //After selection, let the first item be selected, so that there is Change. document .all.sel.options[0].selected=true; }
2. jQuery gets the Text and Value selected by Select
Copy code
The code is as follows : Syntax explanation: $("#select_id").change(function(){//code...}); //Add an event for Select, when one of them is selected Triggered when selecting an item
var checkText=$("#select_id").find("option:selected").text(); //Get the Text selected by Select
var checkValue=$("#select_id") .val(); //Get the Value selected by Select var checkIndex=$("#select_id ").get(0).selectedIndex; //Get the index value selected by Select var maxIndex=$(" #select_id option:last").attr("index"); //Get the maximum index value of Select
jQuery sets the Text and Value selected by Select: Syntax explanation:
$("#select_id ").get(0).selectedIndex=1; //Set the Select index value Select the item of 1 $("#select_id ").val(4); //Set the Value value of Select to 4 to select the item $("#select_id option[text='jQuery']" ).attr("selected", true); //Set the Text value of Select to the jQuery item selected