Function isFirstLevelPropsChild

dash/dash-renderer/src/wrapper/selectors.ts:23–43

(
    updatedPath: string,
    strPath: string
)

const previousHashes: Hashes = {};

const isFirstLevelPropsChild = (
    updatedPath: string,
    strPath: string
): [boolean, string[]] => {
    const updatedSegments = updatedPath.split(',');
    const fullSegments = strPath.split(',');

    // Check that strPath actually starts with updatedPath
    const startsWithPath = fullSegments.every(
        (seg, i) => updatedSegments[i] === seg
    );

    if (!startsWithPath) return [false, []];

    // Get the remaining path after the prefix
    const remainingSegments = updatedSegments.slice(fullSegments.length);

    const propsCount = remainingSegments.filter(s => s === 'props').length;

    return [propsCount < 2, remainingSegments];
};

function determineChangedProps(
    state: any,