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DOM basics: DOM selection, querySelector, querySelectorAll, getElementById, traversal, manipulation, createElement, appendChild, removeChild, and innerHTML vs textContent

The DOM is the browser's tree representation of the page, and JavaScript can select, traverse, and update nodes through several APIs.

JavaScript Medium Theory

DOM basics: DOM selection, querySelector, querySelectorAll, getElementById, traversal, manipulation, createElement, appendChild, removeChild, and innerHTML vs textContent

The DOM is the browser's tree representation of the page, and JavaScript can select, traverse, and update nodes through several APIs.

  • Selectors return elements or node lists
  • DOM manipulation changes the page tree
  • `textContent` is safer than arbitrary `innerHTML`
#browser #dom #javascript

DOM basics: DOM selection, querySelector, querySelectorAll, getElementById, traversal, manipulation, createElement, appendChild, removeChild, and innerHTML vs textContent