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add iterator #18

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add iterator #18

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45b39df
add iterator
ShakirovaGulnaz May 14, 2021
13858c3
some fix
ShakirovaGulnaz May 20, 2021
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34 changes: 34 additions & 0 deletions iterator/index.html
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Original file line number Diff line number Diff line change
@@ -0,0 +1,34 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script src="iterator.js"></script>
</head>
<body>
</body>

<script>
//create a map collection
let map = new Map([[0, "zero"], [1, 1], [2, "two"], [3, 3], [4, 4]])
// //create iterator for map
let iterator = new Iterator(map);

console.log(iterator.getNext());
console.log(iterator.getNext());
console.log(iterator.getNext());
console.log(iterator.getNext());
console.log(iterator.getNext());

//create a set collection
let set = new Set(["zero", 1, "two" , 3, 4])
// //create iterator for set
let iterator1 = new Iterator(set);

console.log(iterator1.getNext());
console.log(iterator1.getNext());
console.log(iterator1.getNext());
console.log(iterator1.getNext());
console.log(iterator1.getNext());

</script>
11 changes: 11 additions & 0 deletions iterator/iterator.js
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Original file line number Diff line number Diff line change
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// Iterator
class Iterator {
constructor(data) {
this.data = data.values();
}

//get next item from the collection
getNext() {
return this.data.next().value;
}
}