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JavaScript ID Element Selection Methods
bobbyhadz.com/blog/javascript-get-element-by-id-containsYapay zekadan makale özeti
- Basic Selection
- document.querySelector() returns first matching element by ID
- ^ symbol selects elements starting with specific string
- $ symbol selects elements ending with specific string
- * symbol selects elements containing specific string
- Advanced Features
- Selectors can be prefixed with element type for narrowing
- querySelectorAll() returns NodeList of matching elements
- Multiple selectors can be passed to querySelectorAll()
- forEach() method can iterate over matching elements
- Error Handling
- No matches return null
- Null values should be checked before accessing properties
- Property access errors can occur with null values