spruce/src/utils.js

export const domReady = () => {
    return new Promise(resolve => {
        if (document.readyState == "loading") {
            document.addEventListener("DOMContentLoaded", resolve)
        } else {
            resolve()
        }
    })
}

export const isNullOrUndefined = value => {
    return value === null || value === undefined
}

export const isObject = _ => {
    return Object.getPrototypeOf(_) === Object.prototype
}

export const isArray = _ => Array.isArray(_)