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Merged
merged 1 commit into from
Apr 21, 2017
Merged

added more array problems #6

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6 changes: 3 additions & 3 deletions public/dist/js/bundle.min.js
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2 changes: 1 addition & 1 deletion public/dist/js/bundle.min.js.map
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269 changes: 254 additions & 15 deletions src/problems/arrays.js
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Original file line number Diff line number Diff line change
Expand Up @@ -29,7 +29,7 @@ module.exports = [
],
},
{
name: 'Access Array item by index (first)',
name: 'Access Array by index (first)',
time: 10,
prompt: 'Return the first value of the Array',
given: `const fruits = ['apple', 'banana'];\r`,
Expand All @@ -51,7 +51,7 @@ module.exports = [
],
},
{
name: 'Access Array item by index (last)',
name: 'Access Array by index (last)',
time: 10,
prompt: 'Return the last value of the Array',
given: `const fruits = ['apple', 'banana', 'orange'];\r`,
Expand All @@ -73,7 +73,7 @@ module.exports = [
],
},
{
name: 'Access Array item by index (second)',
name: 'Access Array by index (second)',
time: 10,
prompt: 'Return the second value of the Array',
given: `const fruits = ['apple', 'banana'];\r`,
Expand All @@ -95,8 +95,8 @@ module.exports = [
],
},
{
name: 'Loop over array',
time: 30,
name: 'Array.forEach()',
time: 20,
prompt: "Loop over the array, add an 'x' to the end of each name, push each fruit into a new array, then return the new array.",
given: `const fruits = ['apple', 'banana'];\r`,
answer: `const fruits = ['apple', 'banana'];
Expand Down Expand Up @@ -127,8 +127,8 @@ module.exports = [
],
},
{
name: 'Add to the end of an Array',
time: 20,
name: 'Array.push()',
time: 10,
prompt: `Add 'orange' to the end of the 'fruits' array and return 'fruits'.`,
given: `const fruits = ['apple', 'banana'];\r`,
answer: `const fruits = ['apple', 'banana'];
Expand Down Expand Up @@ -159,8 +159,8 @@ module.exports = [
],
},
{
name: 'Remove from the end of an Array',
time: 20,
name: 'Array.pop()',
time: 10,
prompt: `Remove 'orange' from the end of the 'fruits' array and return 'fruits'.`,
given: `const fruits = ['apple', 'banana', 'orange'];\r`,
answer: `const fruits = ['apple', 'banana', 'orange'];
Expand Down Expand Up @@ -188,8 +188,8 @@ module.exports = [
],
},
{
name: 'Remove from the front of an Array',
time: 20,
name: 'Array.shift()',
time: 10,
prompt: `Remove 'apple' from the front of the 'fruits' array and return 'fruits'.`,
given: `const fruits = ['apple', 'banana', 'orange'];\r`,
answer: `const fruits = ['apple', 'banana', 'orange'];
Expand Down Expand Up @@ -217,8 +217,8 @@ module.exports = [
],
},
{
name: 'Add to the front of an Array',
time: 20,
name: 'Array.unshift()',
time: 10,
prompt: `Add 'strawberry' to the front of the 'fruits' array and return 'fruits'.`,
given: `const fruits = ['apple', 'banana', 'orange'];\r`,
answer: `const fruits = ['apple', 'banana', 'orange'];
Expand Down Expand Up @@ -253,8 +253,8 @@ module.exports = [
],
},
{
name: 'Find the index of an item in the Array',
time: 20,
name: 'Array.indexOf()',
time: 10,
prompt: `Return the index of 'banana' in the Array.`,
given: `const fruits = ['strawberry', 'banana', 'mango'];\r`,
answer: `const fruits = ['strawberry', 'banana', 'mango'];
Expand All @@ -275,4 +275,243 @@ module.exports = [
},
],
},
{
name: 'Array.concat()',
time: 10,
prompt: `Merge the two arrays using Array's 'concat()' method. Return the resulting array.`,
given: `const fruits = ['strawberry', 'banana'];\rconst otherFruits = ['pear','peach'];\r`,
answer: `const fruits = ['strawberry', 'banana'];
const otherFruits = ['pear','peach'];
const allTheFruits = fruits.concat(otherFruits);
return allTheFruits;\r`,
tests: [
{
name: 'Correct output',
test: function(output) {
return (
assert.deepEqual(output, [
'strawberry',
'banana',
'pear',
'peach',
]) === undefined
);
},
},
{
name: 'Returns an Array',
test: function(output) {
return assert.isArray(output) === undefined;
},
},
{
name: 'Array has 4 items',
test: function(output) {
return assert.lengthOf(output, 4) === undefined;
},
},
],
},
{
name: 'Array.join()',
time: 10,
prompt: `Mix the two flavors with a '-' using Array's 'join' method. Return the resulting hybrid flavor.`,
given: `const fruits = ['strawberry', 'banana'];\r`,
answer: `const fruits = ['strawberry', 'banana'];
const hybrid = fruits.join('-');
return hybrid;\r`,
tests: [
{
name: 'Correct output',
test: function(output) {
return assert.deepEqual(output, 'strawberry-banana') === undefined;
},
},
{
name: 'Returns a String',
test: function(output) {
return assert.isString(output) === undefined;
},
},
],
},
{
name: 'Array.slice()',
time: 20,
prompt: `Return just the citrus fruits from the 'fruits' array using 'Array.slice()'`,
given: `const fruits = ['strawberry', 'orange', 'lemon', 'banana'];\r`,
answer: `const fruits = ['strawberry', 'orange', 'lemon', 'banana'];
const citrus = fruits.slice(1, 3);
return citrus;`,
tests: [
{
name: 'Correct output',
test: function(output) {
return assert.deepEqual(output, ['orange', 'lemon']) === undefined;
},
},
{
name: 'Returns an Array',
test: function(output) {
return assert.isArray(output) === undefined;
},
},
{
name: 'Array has 2 items',
test: function(output) {
return assert.lengthOf(output, 2) === undefined;
},
},
],
},
{
name: 'Array.reverse()',
time: 10,
prompt: `Reverse the order of the 'fruit' array using 'Array.reverse()'`,
given: `const fruits = ['strawberry', 'orange', 'lemon', 'banana'];\r`,
answer: `const fruits = ['strawberry', 'orange', 'lemon', 'banana'];
const stiurf = fruits.reverse();
return stiurf;`,
tests: [
{
name: 'Correct output',
test: function(output) {
return (
assert.deepEqual(output, [
'banana',
'lemon',
'orange',
'strawberry',
]) === undefined
);
},
},
{
name: 'Returns an Array',
test: function(output) {
return assert.isArray(output) === undefined;
},
},
{
name: 'Array has 4 items',
test: function(output) {
return assert.lengthOf(output, 4) === undefined;
},
},
{
name: `First item is 'banana'`,
test: function(output) {
return assert.deepEqual(output[0], 'banana') === undefined;
},
},
],
},
{
name: 'Array.sort()',
time: 10,
prompt: `Sort the order of the 'fruit' array using 'Array.sort()'`,
given: `const fruits = ['strawberry', 'orange', 'lemon', 'banana'];\r`,
answer: `const fruits = ['strawberry', 'orange', 'lemon', 'banana'];
const orderlyFruit = fruits.sort();
return orderlyFruit;`,
tests: [
{
name: 'Correct output',
test: function(output) {
return (
assert.deepEqual(output, [
'banana',
'lemon',
'orange',
'strawberry',
]) === undefined
);
},
},
{
name: 'Returns an Array',
test: function(output) {
return assert.isArray(output) === undefined;
},
},
{
name: 'Array has 4 items',
test: function(output) {
return assert.lengthOf(output, 4) === undefined;
},
},
{
name: `First item is 'banana'`,
test: function(output) {
return assert.deepEqual(output[0], 'banana') === undefined;
},
},
],
},
{
name: 'Array.lastIndexOf()',
time: 10,
prompt: `Return the index of the last 'peach' instance in the 'fruit' array using 'Array.lastIndexOf()'`,
given: `const fruits = ['peach', 'orange', 'lemon', 'peach'];\r`,
answer: `const fruits = ['peach', 'orange', 'lemon', 'peach'];
const wheresTheLastPeach = fruits.lastIndexOf('peach');
return wheresTheLastPeach;`,
tests: [
{
name: 'Correct output',
test: function(output) {
return assert.deepEqual(output, 3) === undefined;
},
},
{
name: 'Returns a Number',
test: function(output) {
return assert.isNumber(output) === undefined;
},
},
],
},
// forEach? fix one above that tried, but can't verify forEach was used
// .map
// filter
{
name: 'Array.filter()',
time: 10,
prompt: `return an array of the numbers greater than 5 in 'fruits' using 'Array.filter()'`,
given: `const numbers = [1, 1, 2, 3, 5, 8, 13, 21];\r`,
answer: `const numbers = [1, 1, 2, 3, 5, 8, 13, 21];
const overFive = numbers.filter(num => num > 5);
return overFive;`,
tests: [
{
name: 'Correct output',
test: function(output) {
return assert.deepEqual(output, [8, 13, 21]) === undefined;
},
},
{
name: 'Returns an Array',
test: function(output) {
return assert.isArray(output) === undefined;
},
},
{
name: 'Array has 3 items',
test: function(output) {
return assert.lengthOf(output, 3) === undefined;
},
},
{
name: `First item is 8`,
test: function(output) {
return assert.deepEqual(output[0], 8) === undefined;
},
},
],
},
// every
// some
// reduce
// reduceRight
// Array.from and other ways to turn array-like into array
];
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