epubavocado/lib/esm/util.js

I am an EPUB object model aspiring to be standards compliant.

export const toArray = (valueOrArray) => {
    if (!valueOrArray) {
        return [];
    }
    if (Array.isArray(valueOrArray)) {
        return valueOrArray;
    }
    return [valueOrArray];
};
export const splitRelAttribute = (rel) => 
// normalize spaces and split space separated words
rel.replace(/\s+/g, ' ').split(' ');