@augment-vir/web/dist/augments/elements/element-text.js

A collection of augments, helpers types, functions, and classes only for web (frontend) JavaScript environments.

/**
 * Extracts the text content of the given element.
 *
 * @category Web : Elements
 * @category Package : @augment-vir/web
 * @package [`@augment-vir/web`](https://www.npmjs.com/package/@augment-vir/web)
 */
export function extractElementText(element) {
    return recursivelyExtractElementText(element).join('\n');
}
function recursivelyExtractElementText(node) {
    if (node.nodeType === Node.TEXT_NODE) {
        const text = node.textContent?.trim();
        return text ? [text] : [];
    }
    else if (node.nodeType === Node.ELEMENT_NODE) {
        const element = node;
        if (element.tagName.toLowerCase() === 'slot') {
            const slotElement = element;
            const assignedNodes = slotElement.assignedNodes();
            return (assignedNodes.length ? assignedNodes : Array.from(element.childNodes)).flatMap((assignedNode) => recursivelyExtractElementText(assignedNode));
        }
        else {
            return Array.from((element.shadowRoot || element).childNodes).flatMap((childNode) => {
                return recursivelyExtractElementText(childNode);
            });
        }
    }
    return [];
}