From 56bf77c126e2e7a967777f482c461f901d4665e2 Mon Sep 17 00:00:00 2001 From: Meredith D Doucette Date: Sat, 20 Jan 2018 03:12:53 +0000 Subject: [PATCH 1/2] Done. --- README.md | 8 +++++++- arrays.js | 56 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 63 insertions(+), 1 deletion(-) diff --git a/README.md b/README.md index 422cf4c2..d74d5325 100644 --- a/README.md +++ b/README.md @@ -1,4 +1,10 @@ -# JavaScript Arrays +var chocolateBars = ["snickers", "hundred grand", "kitkat", "skittles"]; + +console.log(chocolateBars); + +function addElementToBeginningOfArray(array, element){ + return ['${element}', ...array]; +}# JavaScript Arrays ## Objectives diff --git a/arrays.js b/arrays.js index e69de29b..423a7557 100644 --- a/arrays.js +++ b/arrays.js @@ -0,0 +1,56 @@ +var chocolateBars = ["snickers", "hundred grand", "kitkat", "skittles"]; + +function addElementToBeginningOfArray(array, element){ + return [element, ...array]; +} + +addElementToBeginningOfArray(chocolateBars,"Heath"); + +function destructivelyAddElementToBeginningOfArray(array, element){ + var bars = array.unshift(element) + bars; +} + +console.log(destructivelyAddElementToBeginningOfArray(chocolateBars, "Heath")); + +function addElementToEndOfArray(array, element){ + return [ ...array, element]; +} + +addElementToEndOfArray(chocolateBars,foo); + +function destructivelyAddElementToEndOfArray(array, element){ + return array.push(element); +} + +destructivelyAddElementToEndOfArray(chocolateBars,"Heath"); + +function accessElementInArray(array, index){ + return array[index]; +} + +accessElementInArray(chocolateBars, 3) + +function destructivelyRemoveElementFromBeginningOfArray(array){ + return array.shift() +} + +destructivelyRemoveElementFromBeginningOfArray(chocolateBars); + +function removeElementFromBeginningOfArray(array){ + return array.slice(1); +} + +removeElementFromBeginningOfArray(chocolateBars); + +function destructivelyRemoveElementFromEndOfArray(array){ + array.pop(); +} + +destructivelyRemoveElementFromEndOfArray(chocolateBars); + +function removeElementFromEndOfArray(array){ + array.slice(0, array.length -1); +} + +removeElementFromEndOfArray(chocolateBars); \ No newline at end of file From ad44157dae404cfdcf027fdf49e98ddd28b7c9fe Mon Sep 17 00:00:00 2001 From: Meredith D Doucette Date: Sat, 20 Jan 2018 23:00:09 +0000 Subject: [PATCH 2/2] Done. --- arrays.js | 19 +++++++++++-------- 1 file changed, 11 insertions(+), 8 deletions(-) diff --git a/arrays.js b/arrays.js index 423a7557..68984118 100644 --- a/arrays.js +++ b/arrays.js @@ -7,11 +7,11 @@ function addElementToBeginningOfArray(array, element){ addElementToBeginningOfArray(chocolateBars,"Heath"); function destructivelyAddElementToBeginningOfArray(array, element){ - var bars = array.unshift(element) - bars; + array.unshift(element); + return array; } -console.log(destructivelyAddElementToBeginningOfArray(chocolateBars, "Heath")); +destructivelyAddElementToBeginningOfArray(chocolateBars, "Heath"); function addElementToEndOfArray(array, element){ return [ ...array, element]; @@ -20,7 +20,8 @@ function addElementToEndOfArray(array, element){ addElementToEndOfArray(chocolateBars,foo); function destructivelyAddElementToEndOfArray(array, element){ - return array.push(element); + array.push(element); + return array; } destructivelyAddElementToEndOfArray(chocolateBars,"Heath"); @@ -32,7 +33,8 @@ function accessElementInArray(array, index){ accessElementInArray(chocolateBars, 3) function destructivelyRemoveElementFromBeginningOfArray(array){ - return array.shift() + array.shift(); + return array; } destructivelyRemoveElementFromBeginningOfArray(chocolateBars); @@ -44,13 +46,14 @@ function removeElementFromBeginningOfArray(array){ removeElementFromBeginningOfArray(chocolateBars); function destructivelyRemoveElementFromEndOfArray(array){ - array.pop(); +array.pop(); +return array; } destructivelyRemoveElementFromEndOfArray(chocolateBars); function removeElementFromEndOfArray(array){ - array.slice(0, array.length -1); + return array.slice(0, array.length -1); } -removeElementFromEndOfArray(chocolateBars); \ No newline at end of file +removeElementFromEndOfArray(chocolateBars);