sion]}px`\n\n    Util.reflow(this._element)\n\n    $(this._element)\n      .addClass(CLASS_NAME_COLLAPSING)\n      .removeClass(`${CLASS_NAME_COLLAPSE} ${CLASS_NAME_SHOW}`)\n\n    const triggerArrayLength = this._triggerArray.length\n    if (triggerArrayLength > 0) {\n      for (let i = 0; i < triggerArrayLength; i++) {\n        const trigger = this._triggerArray[i]\n        const selector = Util.getSelectorFromElement(trigger)\n\n        if (selector !== null) {\n          const $elem = $([].sl...