use map to loop through an array

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showing results for - "use map to loop through an array"
Alice
09 Nov 2018
1var myMap = new Map();
2myMap.set("0", "foo");
3myMap.set(1, "bar");
4myMap.set({}, "baz");
5
6for (const [key, value] of myMap.entries()) {
7  console.log(key, value);
8}
source
Joshua
06 Oct 2017
1const object = {'a': 1, 'b': 2, 'c' : 3};
2for (const [key, value] of Object.entries(object)) {
3  console.log(key, value);
4}
source
Daniel
13 Jan 2016
1let squares = [1,2,3,4].map(function (val) {  
2    return val * val;  
3}); 
4// squares will be equal to [1, 4, 9, 16]
source
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