#1-4Task. Artiom Uradau #975
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| @@ -22,7 +22,7 @@ | |||
| * '', 'bb' => 'bb' | |||
| */ | |||
| function concatenateStrings(value1, value2) { | |||
| throw new Error('Not implemented'); | |||
| return value1+value2; | |||
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It is necessary to observe indents between operators
| @@ -69,7 +69,7 @@ function getStringFromTemplate(firstName, lastName) { | |||
| * 'Hello, Chuck Norris!' => 'Chuck Norris' | |||
| */ | |||
| function extractNameFromTemplate(value) { | |||
| throw new Error('Not implemented'); | |||
| return value.substring(7,value.length-1); | |||
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It is necessary to observe indents between operators
| @@ -267,7 +270,9 @@ function isString(value) { | |||
| * 'K♠' => 51 | |||
| */ | |||
| function getCardId(value) { | |||
| throw new Error('Not implemented'); | |||
| let cards = ['A', '2', '3', '4', '5', '6', '7', '8', '9', '10', 'J', 'Q', 'K']; | |||
| @@ -22,7 +22,7 @@ | |||
| * 5, 5 => 25 | |||
| */ | |||
| function getRectangleArea(width, height) { | |||
| throw new Error('Not implemented'); | |||
| return width*height; | |||
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It is necessary to observe indents between operators
| @@ -38,7 +38,7 @@ function getRectangleArea(width, height) { | |||
| * 0 => 0 | |||
| */ | |||
| function getCicleCircumference(radius) { | |||
| throw new Error('Not implemented'); | |||
| return radius*2*Math.PI; | |||
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It is necessary to observe indents between operators
| @@ -102,7 +114,10 @@ function getArrayOfStrings(arr) { | |||
| * [ false, 0, NaN, '', undefined ] => [ ] | |||
| */ | |||
| function removeFalsyValues(arr) { | |||
| throw new Error('Not implemented'); | |||
| return arr.filter(elem => { | |||
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Here you can use simple option "filter(Boolean)"
| @@ -116,7 +131,10 @@ function removeFalsyValues(arr) { | |||
| * [ 'a', 'b', 'c', 'd', 'e', 'f', 'g' ] => [ 'A', 'B', 'C', 'D', 'E', 'F', 'G' ] | |||
| */ | |||
| function getUpperCaseStrings(arr) { | |||
| throw new Error('Not implemented'); | |||
| let array = arr.map(elem => { | |||
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You can use return without variable.
Example: "arr.map(n => n.toUpperCase())"
| @@ -200,7 +221,10 @@ function getTail(arr, n) { | |||
| * +'30,31,32,33,34' | |||
| */ | |||
| function toCsvText(arr) { | |||
| throw new Error('Not implemented'); | |||
| let array = arr.map(elem => { | |||
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Here you can use just "join('\n')"
| @@ -371,7 +430,12 @@ function getFalsyValuesCount(arr) { | |||
| * [ true, 0, 1, 'true' ], true => 1 | |||
| */ | |||
| function findAllOccurences(arr, item) { | |||
| throw new Error('Not implemented'); | |||
| let numberOfRepeatedChars = 0; | |||
| arr.filter(elem => { | |||
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You can solve this using "filter" and "length" without counter
| @@ -353,7 +407,12 @@ function getItemsSum(arr) { | |||
| * [ null, undefined, NaN, false, 0, '' ] => 6 | |||
| */ | |||
| function getFalsyValuesCount(arr) { | |||
| throw new Error('Not implemented'); | |||
| let numberOfFalses = 0; | |||
| arr.filter(elem => { | |||
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You can solve this using "filter" and "length" without counter
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https://travis-ci.com/github/uryadov1998/js-assignments/builds/182028664