JS forms the items with the same name in the array object into the same array according to the name

demand ： Today, I met one who is currently located in Guangzhou , According to the store data of all districts in Guangzhou in the past ！ Design draft requirements ： Classify the stores in a certain area according to the area ！ But the back-end returns an array with all stores ！

Design draft ：

let tempArr = [];
for (let i = 0; i < that.storeList.length; i++) {
    
	if (tempArr.indexOf(that.storeList[i].area_name) === -1) {
    
		that.afterData.push({
    
			name: that.storeList[i].area_name,
			origin: [that.storeList[i]]
		});
		tempArr.push(that.storeList[i].area_name);
	} else {
    
		for (let j = 0; j < that.afterData.length; j++) {
    
			if (that.afterData[j].name == that.storeList[i].area_name) {
    
				that.afterData[j].origin.push(that.storeList[i]);
				break;
			}
		}
	}
}
console.log("88888888888888", that.afterData);

Get it done ！ Go home for dinner ！！！