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6 lip 2009 · In more modern browsers, querySelector allows us to retrieve the selected option in one statement, using the :checked pseudo-class. From the selected option, we can gather whatever information we need: const opt = document.querySelector('#ddlViewBy option:checked'); // opt is now the selected option, so.
You can run the below code snipped to see these methods and the jQuery function in action: const jQueryFunction = () => { $ ('#leaveCode').val ('14'); } const querySelectorFunction = () => { document.querySelector ('#leaveCode').value = '14' } const getElementByIdFunction = () => { document.getElementById ('leaveCode').value='14' }
8 lut 2024 · Let’s see 6 different ways of changing the selected option using JavaScript: 1. Change Select Option by Value. To change the selected option programmatically by the value attribute, all we have to do is change the value property of the <select> element. The select box will then update itself to reflect the state of this property.
Select Object. The Select object represents an HTML <select> element. Access a Select Object. You can access a <select> element by using getElementById():
The selected attribute is a boolean attribute. When present, it specifies that an option should be pre-selected when the page loads. The pre-selected option will be displayed first in the drop-down list. Tip: The selected attribute can also be set after the page loads, with a JavaScript.
Use the selectedIndex and value to get the index and value of the selected option. The HTMLOptionElement represents the <option> element. If the option is selected, the selected property is true. The selectedText and selectedValue properties return the text and value of the selected option.
5 mar 2024 · Use the value property to get the value of the element, e.g. select.value. Use the text property to get the text of the element, e.g. select.options[select.selectedIndex].text . Here is the HTML for the examples.
