饿了么

代码

ratingsshow() {
			 
					if (this.rating === true) {
					let
					 text = this.food.ratings.filter((rating) => {
							if (this.ratingType === 0) {return rating.text && rating}


else if (this.ratingType === 1) {return  rating.text && rating.rateType === 0} 
else if (this.ratingType === 2) {return rating.text && rating.rateType === 1} 
						})
						
						return text

				} else {
					let text = this.food.ratings.filter((rating) => {
							if (this.ratingType === 0) {
								return rating

							} else if (this.ratingType === 1) {
								return rating.rateType === 0
							} else if (this.ratingType === 2) {
								return  rating.rateType === 1
							}

						})
						return text
					}
				 
				
				}

　　vue数据是异步加载的，此时this.food.ratings还没有加载

可以加个判断

ratingsshow() {
				if(this.food.ratings){
					if (this.rating === true) {
					let
					 text = this.food.ratings.filter((rating) => {
							if (this.ratingType === 0) {return rating.text && rating}


else if (this.ratingType === 1) {return  rating.text && rating.rateType === 0} 
else if (this.ratingType === 2) {return rating.text && rating.rateType === 1} 
						})
						
						return text

				} else {
					let text = this.food.ratings.filter((rating) => {
							if (this.ratingType === 0) {
								return rating

							} else if (this.ratingType === 1) {
								return rating.rateType === 0
							} else if (this.ratingType === 2) {
								return  rating.rateType === 1
							}

						})
						return text
					}
				} 
				
				}

　　ok