How to select a radio button with jQuery

JQuery has actually two ways to set checked status for radio and checkboxes and it depends on whether you are using value attribute in HTML markup or not:. In first case, we specify the entire radio group using name and tell JQuery to find radio to select using val function.

Others with the same name would be deselected. If no radio with matching value found then all will be deselected. If there are multiple radios with same name and value then the last one would be selected and others would be deselected.

If you are not using value attribute for radio then you need to use unique ID to select particular radio in the group. In this case, you need to use prop function to set "checked" property. Many people don't use value attribute with checkboxes so 2 is more applicable for checkboxes then radios.

You can play with this code here: I liked the answer by Amc. I found the expression could be condensed further to not use a filter call chaiko apparently also noticed this. Also, prop is the way to go vs attr for jQuery v1.

I think you can assume, that name is unique and all radio in group has the same name. Then you can use jQuery support like that:. If you want it to be truly dynamic and select the radio that corresponds to the incoming data, this works.

It's using the gender value of the data passed in or uses default. Don't need all that. With simple and old HTML you can achieve what you want. If you let the radio you want checked by default like this: And if you want to pass a value from your model and want to select a radio button from the group on load based on value, than use:. By posting your answer, you agree to radio button selected jquery check privacy policy and terms of service.

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Log In Sign Up. Join the Stack Overflow Community. Stack Overflow is a community of 7. Join them; it only takes a minute: How to set radio option checked onload with jQuery? Need to check if no default is set and then set a default. Suk 3, 6 30 Say you had radio buttons like these, for example: Paolo Bergantino k 66 Does jQuery translate true to 'checked' in this example?

My original example had 'checked','checked'it's one of those things I can never remember which one is right. Ah, thanks for getting back to me. I just tried it out with FF and jQuery 1. How about a one liner? Radio button selected jquery check 1, mock stock trading game 9.

The above is better as it supports more complex name values. This does not fully answer the ops question - it needs to check if a default option is already checked common stock trading mistakes. Also you should now use prop instead of attr for this kind of thing.

For explanation, tx real estate earnest money the "Attributes vs.

Also there's no need for the extra filter, you can just combine the 2 selectors e. This solution works for the first time I set the radio but fails afterwards.

Check if radio button is checked or selected using jQuery | jQuery By Example

By using "prop" instead of "attr", it works perfectly. Correct - prop is now the recommended method to access properties. This one will cause form. JQuery has actually two ways to set checked status for radio and checkboxes and it depends on whether you are using value attribute in HTML markup or not: If they have value attribute: Consider the same input tags from Paolo Bergantino's answer.

Then you can use jQuery support like that: Passing array is important. Saram 1, 14 MartinBarker can you explain what do you men by 'scanning'? MartinBarker - I agree. Usually I prefix selector with form id or provide context param. Currently scanning DOM is not jQuery effort but internal browser engine, document.

WildSpidee 71 1 1. Adrian Pronk 8, 5 25 Carlos Torres 21 1.

Please give an explanation too. And if you want to pass a value from your model and want to select a radio button from the group on load based on value, than use: Note this behavior when getting radio input values: Bradley Flood 3, 27 Here is example with above methods: Blizzard 5, 45 JrBriones 1, 1 7 5.

Checking if certain Radiobutton is checked - jQuery Forum

Sign up or log in StackExchange. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Stack Overflow works best with JavaScript enabled. Need to check if no default is set and then set a default jquery radio-button share.

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