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Complete arrays lab #2

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Complete arrays lab #2

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e6d7923
Create index.html. Complete and call first function
Nov 28, 2020
932b170
Complete up to equals() method
michael-mcmasters Nov 28, 2020
e3bd7b1
Complete all methods in class
michael-mcmasters Nov 28, 2020
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89 changes: 77 additions & 12 deletions ArrayUtils.js
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Original file line number Diff line number Diff line change
@@ -1,21 +1,86 @@
class ArrayUtils{
class ArrayUtils {
isEmpty(array) {
return array.length == 0;
}

isEmpty(array){return false;}
append(original, value) {
original.push(value);
return original;
}

append(original, value){return original;}
clone(original) {
let copyArray = [];
for (let e of original) {
copyArray.push(e);
}
return copyArray;
}

clone(original){return original;}
subArray(original, from, to) {
const newArray = [];
for (let i = from; i < to; i++) {
if (i < original.length) {
newArray.push(original[i]);
} else {
break;
}
}
return newArray;
}

subArray(original, from, to){return original;}
equals(arr1, arr2) {
for (let i = 0; i < arr1.length; i++) {
if (arr1[i] !== arr2[i]) return false;
}
return true;
}

equals(arr1, arr2){return false;}
fill(original, value) {
for (let i = 0; i < original.length; i++) {
original[i] = value;
}
return original;
}

fill(original, value){}
indexOf(original, value) {
for (let i = 0; i < original.length; i++) {
if (original[i] === value) return i;
}
return -1;
}

indexOf(original, value){return -1;}
remove(original, value) {
let newArray = [];
for (let e of original) {
if (e !== value) newArray.push(e);
}

remove(original, value){return original;}
return newArray;
}

reverse(original){}

}
reverse(original) {
let reversedArr = [];
for (let e of original) {
reversedArr.unshift(e);
}
return reversedArr;
}
}

// Create reference to class
const arrayUtils = new ArrayUtils();

// Given
let array = [1, 2, 3, 4, 5];
let array2 = [1, 2, 3, 4, 5];

// Print returned values
// console.log(arrayUtils.isEmpty(array));
// console.log(arrayUtils.append(array, 6));
// console.log(arrayUtils.clone(array));
// console.log(arrayUtils.subArray(array, 2, 4));
// console.log(arrayUtils.equals(array, array2));
// console.log(arrayUtils.fill(array, 20));
// console.log(arrayUtils.indexOf(array, 3));
// console.log(arrayUtils.remove(array, 3));
console.log(arrayUtils.reverse(array, 3));
9 changes: 9 additions & 0 deletions index.html
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Original file line number Diff line number Diff line change
@@ -0,0 +1,9 @@
<!DOCTYPE html>

<head>
<script src="./ArrayUtils.js"></script>
</head>

<body>
Hello World
</body>