HTML | DOM Select selectedIndex Property
The Select selectedIndex property in HTML DOM is used to set or return the index of the selected option in a drop-down list. The index of the drop-down list generally starts with 0 and returns -1 if no option is selected. This property returns the index of the first option if the drop-down list allows multiple selections.
Syntax:
- It returns the Select selectedIndex property.
selectObject.selectedIndex
- It is used to set the Select selectedIndex property.
selectObject.selectedIndex = number
Property Values: It contains single value number which is used to specify the index of the selected option in a drop-down list.
Below program illustrates the Select selectedIndex property in HTML DOM:
Example: This example uses Select selectedIndex property to select the <option> element with index “3”.
<!DOCTYPE html> < html > < head > < title > HTML DOM Select selectedIndex Property </ title > </ head > < body style = "text-align:center;" > < h1 style = "color:green;" > GeeksforGeeks </ h1 > < h2 style = "font-family: Impact;" > Select selectedIndex Property </ h2 >< br > Select your preferred course from the drop-down list:< br > < select name = "Courses Titles" id = "myCourses" > < option value = "C++" >c++</ option > < option value = "Placement" >Placement</ option > < option value = "Java" >Java</ option > < option value = "Python" >Python</ option > </ select > < p > To select the option element with index "3", double-click the "Return Element" button. </ p > < button ondblclick = "myGeeks()" > Return Element </ button > <!-- This example uses Select selectedIndex Property --> < script > function myGeeks() { document.getElementById("myCourses").selectedIndex = "3"; } </ script > </ body > </ html > |
Output:
Before Clicking the button:
After Clicking the button:
Supported Browsers: The browser supported by DOM Select selectedIndex property are listed below:
- Apple Safari
- Internet Explorer
- Firefox
- Google Chrome
- Opera
Recommended Posts:
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- HTML | DOM Select name Property
- HTML | DOM Select length Property
- HTML | DOM Select form Property
- HTML | DOM Select type Property
- HTML | DOM Select size Property
- HTML | DOM Select multiple Property
- HTML | DOM Select autofocus Property
- HTML | DOM Select disabled Property
- CSS | user-select Property
- HTML | <select> Tag
- HTML | DOM Select add Method
- HTML | <select> name Attribute
- HTML | DOM Select Object
- HTML | DOM Textarea select() Method
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