Sort icons with swiper

For example, there is now 20 Data of icons
Need to use swiper Pagination One page 15 An icon

   //  How many on a page 
	var num = 15
	//  It can be divided into several pages 
	this.typePage = parseInt(Math.ceil(this.serviceList.length / num))
	//  newTypeList  It's an empty array   Used to store paged data 
	//  serviceList  It's the above example 20 Total data of icons 
		for (let i = 0; i < this.serviceList.length; i += num) {
    
			this.newTypeList.push(this.serviceList.slice(i, i + num));
		}