diff --git a/exercises.js b/exercises.js index 4ffe65f..37a633e 100644 --- a/exercises.js +++ b/exercises.js @@ -9,12 +9,16 @@ const album1 = { label: "Sire", formats: ["LP"] } -} +} // 1. Retrieve the string "Sire" from album1, and save it in a sensibly named -// variable. +// variable. +let album1Label = album1.albumDetails.label +console.log (album1Label) // 2. Change the title of album1 from "Talking Heads" to "Talking Heads: 77" +album1.title = "Talking Heads: 77" +console.log(album1.title) const album2 = { title: "More Songs About Buildings and Food", @@ -37,6 +41,8 @@ const album3 = { // 3. Access album2's formats array and use an array method to add "LP" to // album3's formats // Check out the Array.push method! +album3.albumDetails.formats.push("LP") +console.log(album3.albumDeatils.formats) // 4. Change the release date of album3 from a string into a Date object // Look ahead to album4 for a clue! @@ -48,6 +54,8 @@ const album4 = { formats: ["Cassette", "LP"] } } +album3.albumDetails.released = new Date("August 3, 1979") +console.log(album3.albumDetails.released) // 5. Add the label "Sire" to album4's details @@ -58,8 +66,12 @@ const album5 = { label: "Sire" } } +album4.albumDetails.label = "Sire" +console.log(album4.albumDetails.label) // 6. Add a 'formats' array to album 5 and add "CD", "Cassette", and "LP" +album5.albumDetails.formats = ["CD", "Cassette", "LP"] +console.log(album5.albumDetails.formats) const album6 = { title: "Little Creatures", @@ -70,8 +82,11 @@ const album6 = { } } + // 7. Make the label "emi" in album6 all uppercase // google how to make a string uppercase in js! +album6.albumDetails.labels[1] = album6.albumDetails.labels[1].toUpperCase() +console.log( album6.albumDetails.labels[1]) const album7 = { title: "True Stories", @@ -85,7 +100,9 @@ const album7 = { // 8. Convert album7's 'labels' property from the string value // "Sire, EMI" into the array: ["Sire", "EMI"] // google js array split! - +let album7split = album7.albumDetails.labels.split[","] +album7.albumDetails.labels = album7Split +console.log(album7.albumDetails.labels) ///////////////////////////////////////////////////// // Part 2: More Tasks About Datatypes and Structures ///////////////////////////////////////////////////// @@ -111,17 +128,17 @@ const talkingHeadsAlbums = [ ] // 1. Create an object literal called `band`. - // 2. Give it the property `name` and set it to "Talking Heads" - // 3. Give it the property `members` and set it to an array with a single // string, "David Byrne", in it. - // 4. Give it the property `albums` and set it to the array stored in the // variable talkingHeadsAlbums - +let band = { name: "Talking Heads", members: ["David Byrne"], albums: talkingHeadsAlbums}; +console.log(band) // 5. Add "Tiny Weymouth", "Chris Franz" and "Jerry Harrison" to the members // array. +band.members.push("Chris Franz", "Tiny Weymouth", "Jerry Harrison") +console.log(band) //////////////////////////////////////////////// // Part 3: Conditional Logic @@ -131,11 +148,20 @@ const talkingHeadsAlbums = [ // if the Talking Heads have 6 albums or more. Otherwise, console.log // "Talking heads didn't have much output." Use the array of albums // talkingHeadsAlbums above. - +if talkingHeadsAlbums.length >= 6 ? { + console.log("Talking Heads were a prolific band") + } else { + console.log("Talking heads didn't have much output.") + } // 2. Write a conditional to check if the number of albums in // talkingHeadsAlbums is odd or even, and then console.log // "The number X is odd" or "The number X is even" with X being // the number of albums. +if((talkingHeadsAlbums.length %2) === 0) { + console.log(`The number ${talkingHeadsAlbums.length} is even`) + } else { + console.log (`The number ${talkingHeadsAlbums.length} is odd`) + } // 3. Write conditionals to check if the number of albums in // talkingHeadsAlbums is divisible by either 2 or 3, and then @@ -146,15 +172,37 @@ const talkingHeadsAlbums = [ // - "The number Y is not divisible by 2 or 3", // // with Y being the number of albums. - +if ((talkingHeadsAlbums.length %3 === 0) && (talkingHeadsAlbums.length %2 === 0 )) { + console.log( `The number ${talkingHeadsAlbums.length} is divisible by 2 and 3`) + } else if (talkingHeadsAlbums.length %2 === 0) { + console.log( `The number ${talkingHeadsAlbums.length} is divisible by 2`) + } else if (talkingHeadsAlbums.length %3 ===0) { + console.log(`The number ${talkingHeadsAlbums.length} is divisible by 3`) + } else { + console.log(`The number ${talkingHeadsAlbums.length} is NOT divisible by 2 or 3.`) + } // 4. Check your logic above against the numbers: 0, 1, 2, 6, 7, and 9. // Make sure it always works! - +let testNumber = 0 +if(testNumber === 0 ) { + console.log("zero") +} else if ((testNumber %3 === 0) && (testNumber %2 === 0 )) { + console.log( `The number ${testNumberh} is divisible by 2 and 3`) + } else if (testNumber %2 === 0) { + console.log( `The number ${testNumber} is divisible by 2`) + } else if (testNumber %3 ===0) { + console.log(`The number ${testNumber} is divisible by 3`) + } else { + console.log(`The number ${testNumber} is NOT divisible by 2 or 3.`) + } ///////////////////////////////////////////////////// // Part 4: For Loops ///////////////////////////////////////////////////// // 1. Use a for loop to print out the name of each Talking Heads album +for(album in talkingHeadsAlbums) { + console.log(talkingHeadsAlbums[album].title) +} // 2. Create a variable called `sireTally`, and set it to the integer value 0. // Then use a for-loop to go through all the Talking Heads albums, @@ -162,3 +210,16 @@ const talkingHeadsAlbums = [ // // Warning: some albums have a property `.label`, which is a string, and some // have `.labels`, which is an Array! +let sireTally = 0 +for(album in talkingHeadsAlbums) { + if(talkingHeadsAlbums[album].albumDetails.label) { + if(talkingHeadsAlbums[album].albumDetails.label === "Sire" ) { + sireTally++ + } + } else if(talkingHeadsAlbums[album].albumDetails.labels) { + if(talkingHeadsAlbums[album].albumDetails.labels.includes("Sire")) { + sireTally++ + } + } +} +console.log(sireTally) \ No newline at end of file