collapse.js

import Util from './src/util'

const Default = {
    toggle : true,
    parent : ''
}

class Collapse {
    constructor(element, config) {
        this._isTransitioning = false
        this._element = element
        this._config = this._getConfig(config)
        this._triggerArray    = Array.from(document.querySelectorAll(`[data-toggle="collapse"][href="#${element.id}"], [data-toggle="collapse"][data-target="#${element.id}`))

    }

    _getConfig(config) {
        config = Object.assign({}, Default, config)
        config.toggle = Boolean(config.toggle) // coerce string values
        Util.typeCheckConfig(NAME, config, DefaultType)
        return config
    }
}