conditional-own-line-bad.ts

//🚫
getBackgroundArt(track: Track): BackgroundImage {
 let backgroundImage: BackgroundImage;
 if(!track.getGenre()) {
   backgroundImage = {dimension: BackgroundImageDimensions.small, url : this.DEFAULT_BACKGROUND_IMAGE_URL};
 } if (track.getGenre() == "hiphop") {
   backgroundImage = {dimension: BackgroundImageDimensions.small, url: this.HIPHOP_BACKGROUND_IMAGE_URL};
 } if(track.getGenre() == "jazz") {
   backgroundImage = {dimension: BackgroundImageDimensions.small, url: this.JAZZ_BACKGROUND_IMAGE_URL};
 } if(track.getGenre() == "rap") {
   backgroundImage = {dimension: BackgroundImageDimensions.small, url: this.RAP_BACKGROUND_IMAGE_URL};
 } if(track.getGenre() == "country") {
   backgroundImage = {dimension: BackgroundImageDimensions.small, url: this.COUNTRY_BACKGROUND_IMAGE_URL};
 }
 return backgroundImage;
}

conditional-own-line-good.ts

//✅
getBackgroundArt(track: Track): BackgroundImage {
 let backgroundImage: BackgroundImage;
 if(!track.getGenre()) {
   backgroundImage = {dimension: BackgroundImageDimensions.small, url : this.DEFAULT_BACKGROUND_IMAGE_URL};
 } else if (track.getGenre() == "hiphop") {
   backgroundImage = {dimension: BackgroundImageDimensions.small, url: this.HIPHOP_BACKGROUND_IMAGE_URL};
 } else if(track.getGenre() == "jazz") {
   backgroundImage = {dimension: BackgroundImageDimensions.small, url: this.JAZZ_BACKGROUND_IMAGE_URL};
 } else if(track.getGenre() == "rap") {
   backgroundImage = {dimension: BackgroundImageDimensions.small, url: this.RAP_BACKGROUND_IMAGE_URL};
 } else if(track.getGenre() == "country") {
   backgroundImage = {dimension: BackgroundImageDimensions.small, url: this.COUNTRY_BACKGROUND_IMAGE_URL};
 }
 return backgroundImage;
}