Baseline Widely available
The Option() constructor creates a new HTMLOptionElement.
new Option()
new Option(text)
new Option(text, value)
new Option(text, value, defaultSelected)
new Option(text, value, defaultSelected, selected)
text Optional
A string representing the content of the element, i.e., the displayed text. If this is not specified, a default value of "" (empty string) is used.
value Optional
A string representing the value of the HTMLOptionElement, i.e., the value attribute of the equivalent <option>. If this is not specified, the value of text is used as the value, e.g., for the associated <select> element's value when the form is submitted to the server.
defaultSelected Optional
A value of either true or false that sets the selected attribute value, i.e., so that this <option> will be the default value selected in the <select> element when the page is first loaded. If this is not specified, a default value of false is used. Note that a value of true does not set the option to selected if it is not already selected.
selected Optional
A value of either true or false that sets the option's selected state; the default is false (not selected). If omitted, even if the defaultSelected argument is true, the option is not selected.
/* assuming we have the following HTML
<select id='s'>
</select>
*/
const s = document.getElementById("s");
const options = [Four, Five, Six];
options.forEach((element, key) => {
s[key] = new Option(element, key);
});
/* assuming we have the following HTML
<select id="s">
<option>First</option>
<option>Second</option>
<option>Third</option>
</select>
*/
const s = document.getElementById("s");
const options = ["zero", "one", "two"];
options.forEach((element, key) => {
if (element === "zero") {
s[key] = new Option(element, s.options.length, false, false);
}
if (element === "one") {
s[key] = new Option(element, s.options.length, true, false); // Will add the "selected" attribute
}
if (element === "two") {
s[key] = new Option(element, s.options.length, false, true); // Just will be selected in "view"
}
});
/* Result
<select id="s">
<option value="0">zero</option>
<option value="1" selected="">one</option>
<option value="2">two</option> // User will see this as 'selected'
</select>
*/
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