Question

Which of the following options is used to access a value inside a textbox that has "price" as id?
Select one:
a. document.getElementByNames("price")
b.document.getElementById("price")
c. document.getElementsByTagName("price")
d. document.getElementByName("price")​

Answer 1

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Answer 2

Answer:

option B) document.getElementById("price") is the correct answer

Explanation:

• The element with the supplied value is returned by the getElementById() function.
• If the element doesn't exist, the getElementById() function returns null.
• One of the most often used methods in the HTML DOM is getElementById(). It is utilised nearly often when reading or editing an HTML element.

Syntax

document.getElementById(elementID)

Parameter                                   Description

 id                                                    Required. The id value of an element.

Type                                           Description

Object                                     the element whose id is supplied.

                                                   if the element doesn't exist, null.

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