When Should You Choose Vanilla JavaScript Over jQuery?

When to Use Vanilla JavaScript over jQuery: Specific Instances

While jQuery is a valuable tool, certain instances warrant the use of vanilla JavaScript. These scenarios offer increased efficiency, improved readability, and reduced code complexity. Here are notable examples:

Accessing DOM Properties

• this.id: Reference the ID of the clicked element within a click event.
• this.value: Obtain the value of input elements (excluding elements). this.className: Get or set the entire "class" property. this.selectedIndex: Retrieve the selected index of elements.
• this.options: Retrieve a list of elements within elements. this.text: Access the text content of elements. this.rows: Obtain a collection of elements from a . this.cells: Get cells (td & th) within a . this.parentNode: Access the direct parent element. Retrieving Element State Properties this.checked: Determine the checked state of checkbox inputs. this.selected: Check if an option is selected. this.disabled: Ascertain the disabled state of input elements. this.readOnly: Retrieve the readOnly state of input elements. Attributes and Links this.href: Access the href property of elements. this.hostname: Get the domain from the href of elements. this.pathname: Retrieve the path from the href of elements. this.search: Obtain the querystring from the href of elements. this.src: Access the src property of elements that support it. Advanced DOM Manipulation While jQuery offers convenience for DOM manipulation, vanilla JavaScript provides more granular control, optimizing performance in critical scenarios: Attribute Access and Modification: Replace $(el).attr('someName'); with el.getAttribute('someName');. Element Unwrapping: Handle unwrapping elements efficiently with: <code class="javascript">var spans = document.getElementsByTagName('span'); while( spans[0] ) { var parent = spans[0].parentNode; while( spans[0].firstChild ) { parent.insertBefore( spans[0].firstChild, spans[0]); } parent.removeChild( spans[0] ); }</code>Copy after login In conclusion, while jQuery streamlines certain tasks, vanilla JavaScript remains essential for scenarios demanding efficiency, readability, and fine-grained control over the DOM.The above is the detailed content of When Should You Choose Vanilla JavaScript Over jQuery?. For more information, please follow other related articles on the PHP Chinese website! 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