Why does jQuery or a DOM method such as getElementById not find the element

0 votes

What are the possible reasons for document.getElementById, $("#id") or any other DOM method / jQuery selector not finding the elements?

Example problems include:

  • jQuery silently failing to bind an event handler
  • jQuery "getter" methods (.val(), .html(), .text()) returning undefined
  • A standard DOM method returning null resulting in any of several errors:

Uncaught TypeError: Cannot set property '...' of null
Uncaught TypeError: Cannot set properties of null (setting '...')
Uncaught TypeError: Cannot read property '...' of null
Uncaught TypeError: Cannot read properties of null (reading '...')

The most common forms are:

Uncaught TypeError: Cannot set property 'onclick' of null
Uncaught TypeError: Cannot read property 'addEventListener' of null
Uncaught TypeError: Cannot read property 'style' of null

Jun 1, 2022 in JQuery by Edureka
• 13,640 points
734 views

1 answer to this question.

0 votes

At the moment the script is executed, the element does not exist yet and getElementById will return null . The same applies to all selectors with jQuery. jQuery won't find elements if you misspelled your selector or you are trying to select them before they actually exist.

answered Jun 1, 2022 by Edureka
• 13,640 points

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