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in an html page i have got, i have a select box like this with values.
<select onChange="return filler(this.value);"> <option value="{'name':'rajiv',age:'40'}">a</option> <option value="{'name':'mithun',age:'22'}">f</option> </select> i want to pass a javascript array or object as the option value. right now it is treating the option value as a string.
i want it to be an array so that i can access it by
this.value.name,this.value.age in the filler function.
is this possible?
389
You can select on any attribute and its value by using the attribute selector [attributename=optionalvalue] , so in your case you can select the option and set the selected attribute. $("div. id_100 > select > option[value=" + value + "]"). prop("selected",true);
Method 1: Append the option tag to the select box The select box is selected with the jQuery selector and this option is added with the append() method. The append() method inserts the specified content as the last child of the jQuery collection. Hence the option is added to the select element.
First, create the template variables for dropdown using #teams . Use the event binding to listen for the change event and link with the onSelect method. The onSelect method receives the reference variable and takes the value of the dropdown element. Next, create the onSelected(value) method in the TypeScript file.
To get the value of a select or dropdown in HTML using pure JavaScript, first we get the select tag, in this case by id, and then we get the selected value through the selectedIndex property. The value "en" will be printed on the console (Ctrl + Shift + J to open the console).
You will not be able to store objects/arrays in the value attribute, however an option would be to use data-* attributes which supports json automatically with jQuery 1.4.3+
<select> <option data-value='{"name":"rajiv","age":"40"}'>a</option> <option data-value='{"name":"mithun","age":"22"}'>f</option> </select> And using .change()
$("select").change(function(){ alert($(this).find(":selected").data("value").age); }); Example on jsfiddle
113
No, not just like that. Values have to be strings. I'd strongly recommend to use something like jQuerys .data() method to hold Arrays or Objects in an expando property.
If it must be in the value, you just need to JSON decode (.parse) it:
var myValue = JSON.parse(this.value); myValue.age; // 40 myValue.name // rajiv But again, I don't think this is a good solution. Have a look at http://api.jquery.com/jQuery.data/ Also, jQuery will automatically convert Arrays and Objects if you put the JSON strings in any data- HTML5 attribute. For instance:
<option value="A" data-info="{'name':'rajiv',age:'40'}">something</option> If you access that node with jQuery now, we automatically got that object in it's data expando
$('option').data('info').name; // === rajiv If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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