--- id: 56533eb9ac21ba0edf2244e0 title: Replacing If Else Chains with Switch challengeType: 1 videoUrl: 'https://scrimba.com/c/c3JE8fy' forumTopicId: 18266 dashedName: replacing-if-else-chains-with-switch --- # --description-- If you have many options to choose from, a `switch` statement can be easier to write than many chained `if`/`else if` statements. The following: ```js if (val === 1) { answer = "a"; } else if (val === 2) { answer = "b"; } else { answer = "c"; } ``` can be replaced with: ```js switch(val) { case 1: answer = "a"; break; case 2: answer = "b"; break; default: answer = "c"; } ``` # --instructions-- Change the chained `if`/`else if` statements into a `switch` statement. # --hints-- You should not use any `else` statements anywhere in the editor ```js assert(!/else/g.test(code)); ``` You should not use any `if` statements anywhere in the editor ```js assert(!/if/g.test(code)); ``` You should have at least four `break` statements ```js assert(code.match(/break/g).length >= 4); ``` `chainToSwitch("bob")` should be the string `Marley` ```js assert(chainToSwitch('bob') === 'Marley'); ``` `chainToSwitch(42)` should be the string `The Answer` ```js assert(chainToSwitch(42) === 'The Answer'); ``` `chainToSwitch(1)` should be the string `There is no #1` ```js assert(chainToSwitch(1) === 'There is no #1'); ``` `chainToSwitch(99)` should be the string `Missed me by this much!` ```js assert(chainToSwitch(99) === 'Missed me by this much!'); ``` `chainToSwitch(7)` should be the string `Ate Nine` ```js assert(chainToSwitch(7) === 'Ate Nine'); ``` `chainToSwitch("John")` should be `""` (empty string) ```js assert(chainToSwitch('John') === ''); ``` `chainToSwitch(156)` should be `""` (empty string) ```js assert(chainToSwitch(156) === ''); ``` # --seed-- ## --seed-contents-- ```js function chainToSwitch(val) { let answer = ""; // Only change code below this line if (val === "bob") { answer = "Marley"; } else if (val === 42) { answer = "The Answer"; } else if (val === 1) { answer = "There is no #1"; } else if (val === 99) { answer = "Missed me by this much!"; } else if (val === 7) { answer = "Ate Nine"; } // Only change code above this line return answer; } chainToSwitch(7); ``` # --solutions-- ```js function chainToSwitch(val) { let answer = ""; switch(val) { case "bob": answer = "Marley"; break; case 42: answer = "The Answer"; break; case 1: answer = "There is no #1"; break; case 99: answer = "Missed me by this much!"; break; case 7: answer = "Ate Nine"; } return answer; } ```