Type guard for narrowing unknown values to HTMLElement.
HTMLElement
Unknown value to narrow (e.g. from querySelector).
querySelector
true when value is an HTMLElement instance; false in non-DOM environments or for other node types.
true
value
false
const el = document.querySelector("#app");if (isHtmlElement(el)) { el.tabIndex = -1;} Copy
const el = document.querySelector("#app");if (isHtmlElement(el)) { el.tabIndex = -1;}
Type guard for narrowing unknown values to
HTMLElement.