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18 paź 2016 · You can use .find() to select checked element: var radio = Array.from(document.querySelectorAll('#rate input')) var value = radio.length && radio.find(r => r.checked).value
14 wrz 2009 · For client-side validation, here's some Javascript to check which one is selected: if (document.getElementById ('gender_Male').checked) { //Male radio button is checked }else if (document.getElementById ('gender_Female').checked) { //Female radio button is checked }
The checked property sets or returns the checked state of a radio button. This property reflects the HTML checked attribute.
Oto funkcja, która zwróci wartość true, jeśli przynajmniej jeden przycisk opcji zostanie wybrany gdzieś na stronie. Ponownie może to wymagać dostosowania w zależności od konkretnego kodu HTML. function atLeastOneRadio {return ($ ('input[type=radio]:checked'). size > 0);}
25 lip 2024 · In addition to the common attributes shared by all <input> elements, radio inputs support the following attributes. checked. A Boolean attribute which, if present, indicates that this radio button is the default selected one in the group. Unlike other browsers, Firefox by default persists the dynamic checked state of an <input> across page loads.
17 wrz 2024 · The checked property approach uses JavaScript to check if a radio button is selected. By accessing a radio button element with document.getElementById or querySelector, you can evaluate its checked property, which returns true if the button is selected, otherwise false.
5 mar 2024 · To set a radio button to checked/unchecked, select the element and set its checked property to true or false, e.g. myRadio.checked = true. When set to true, the radio button becomes checked and all other radio buttons with the same name attribute become unchecked. Here is the HTML for the examples.
