Function querySelector

  • querySelector<K extends keyof HTMLElementTagNameMap>(
        selectors: K,
        parentNode?: ParentNode,
    ): null | HTMLElementTagNameMap[K]

    Returns the first element that is a descendant of node that matches selectors.

    Type Parameters

    • K extends keyof HTMLElementTagNameMap

    Parameters

    • selectors: K
    • OptionalparentNode: ParentNode

    Returns null | HTMLElementTagNameMap[K]

  • querySelector<K extends keyof SVGElementTagNameMap>(
        selectors: K,
        parentNode?: ParentNode,
    ): null | SVGElementTagNameMap[K]

    Returns the first element that is a descendant of node that matches selectors.

    Type Parameters

    • K extends keyof SVGElementTagNameMap

    Parameters

    • selectors: K
    • OptionalparentNode: ParentNode

    Returns null | SVGElementTagNameMap[K]

  • querySelector<E extends Element = Element>(
        selectors: string,
        parentNode?: ParentNode,
    ): null | E

    Returns the first element that is a descendant of node that matches selectors.

    Type Parameters

    • E extends Element = Element

    Parameters

    • selectors: string
    • OptionalparentNode: ParentNode

    Returns null | E

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