Specifies the maximum value of numerical and datetime inputs. Specifies the id of the with the autocomplete options. Specifies the image height for type="image". Overrides the parent for type="submit" and type="image". If omitted, it’s the closest parent form. Specifies the id of the this input belongs to. If true, the input will not be interactive and will appear dimmed. Specifies the form field name for the element’s directionality. If true, React will focus the element on mount. Specifies one of the possible autocomplete behaviors. Specifies the media (microphone, video, or camera) captured by a type="file" input. Specifies the alternative image text for a type="image" input. Specifies which filetypes are accepted by a type="file" input. These props are relevant both for uncontrolled and controlled inputs: Specifies the initial value for a text input. Specifies the initial value for type="checkbox" and type="radio" inputs. These props are only relevant for uncontrolled inputs: When you pass either of them, you must also pass an onChange handler that updates the passed value. (For a radio button, specifies its form data.) For a checkbox input or a radio button, controls whether it is selected. You can make an input controlled by passing one of these props: When a function is passed to formAction the function will handle the form submission. When a URL is passed to action the form will behave like a standard HTML form. Learn more about React’s release channels here.įormAction: A string or function. In stable releases of React formAction works only as a built-in browser HTML component. You can also use the querySelectorAll() method in place of the getElementsByName() method and still get the same result.React’s extensions to the formAction prop are currently only available in React’s canary and experimental channels. To loop through all the radio buttons in a group, you can use the getElementsByName() method of the DOM and then run a for or foreach loop over the array returned by this method to check what all radio buttons are selected. In this article, we learned how we can loop through a group of radio buttons using JavaScript. Let fruits = document.querySelectorAll('input') īelow is the output of the above code: apple : false Let’s take the same example that we discussed in the previous example and try to loop through all the radio buttons: // Get all radio buttons as a nodes array This will return you a list of all the radio buttons that has the name 'fruits'. This method allows you to select elements based on their CSS selector and returns an array containing all the matching elements.įor example, if we want to select all the radio buttons with name="fruits", we can pass the string "input" to the querySelectorAll() method as a parameter. Method 2: Using the querySelectorAll() MethodĪ modern way to select all the radio buttons is by using the querySelectorAll() method. In our example, the second option was selected, therefore, its selected status is printed as true. Let isSelected = fruits.checked // Check if radio button is selectedĪfter running the above code, you will get the following output: apple : falseĪs you can see from the above output, the value of each radio button is printed along with its selected status. Let value = fruits.value // Get radio button value Let fruits = document.getElementsByName('fruits') Here is the full JS code: // Get all radio buttons as a nodes array If the radio button is selected, the checked property returns true, otherwise, it returns false. Similarly, to check if the radio button is selected or not, we can use the checked property. To get the value of the current radio button, we can use the element.value property. This will return us a node list array containing each radio button. Now, to loop through all these radio buttons, we will use the getElementsByName() method and pass the group name 'fruits' as a parameter to it. This is how the above radio buttons group will look like in the browser: We have by default kept the second option selected: Let’s say we have a radio button group named 'fruits', which has four radio buttons, and each radio button represents a fruit name. Once the node list is fetched, you can run a for or foreach loop over the node list and check which radio button is selected and which is not. The getElementsByName() method takes in a single string parameter which is the name of the group and returns an array containing all the nodes in the specified group. To loop through a group of radio buttons, you can use the getElementsByName() method of the DOM.
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