JAVASCRIPT

js map iterate

map = new Map();
map.set('key1', 'value1');
map.set('key2', 'value2');
for (let [key, value] of map.entries()) {
    console.log(key + ' - ' + value)
}

loop through map in js

const object = {'a': 1, 'b': 2, 'c' : 3};
for (const [key, value] of Object.entries(object)) {
  console.log(key, value);
}

javascript Iterate Through a Map

let map1 = new Map();
map1.set('name', 'Jack');
map1.set('age', '27');

// looping through Map
for (let [key, value] of map1) {
    console.log(key + '- ' + value);
}

Iterate over map in javascript

let map = new Map();
map.set('key1', 'value1');
map.set('key2', 'value2');
for (let [key, value] of map.entries()) {
    console.log(key + ' - ' + value)
}

js loop trough map

for (let key of map) {
	console.log(key);
}

iterate map

Map<String, String> map = ...
for (Map.Entry<String, String> entry : map.entrySet()) {
    System.out.println(entry.getKey() + "/" + entry.getValue());
}

use map to loop through an array

let squares = [1,2,3,4].map(function (val) {  
    return val * val;  
}); 
// squares will be equal to [1, 4, 9, 16] 

javascript Iterate Over Map Values

let map1 = new Map();
map1.set('name', 'Jack');
map1.set('age', '27');

// looping through the Map
for (let values of map1.values()) {
    console.log(values);
}

how to loop through a map in js

var myMap = new Map();
myMap.set("0", "foo");
myMap.set(1, "bar");
myMap.set({}, "baz");

for (const [key, value] of Object.entries(myMap)) {
  console.log(key, value);
}

iteratea on values map js

map.values((value) => /* do whatever with value */)

Javascript using .map() loop to loop through an array

// Durations are in minutes 
const tasks = [
  {
    'name'     : 'Write for Envato Tuts+',
    'duration' : 120
  },
  {
    'name'     : 'Work out',
    'duration' : 60
  },
  {
    'name'     : 'Procrastinate on Duolingo',
    'duration' : 240
  }
];
const task_names = tasks.map(function (task, index, array) {
    return task.name; 
});

console.log(task_names) // [ 'Write for Envato Tuts+', 'Work out', 'Procrastinate on Duolingo' ]

iterate map

    for (let [key, value] of map.entries()) {
      console.log(key, value);
    }

Iterating through a map

for (auto const& [key, value] : your_map) {
  std::cout << key    << ':'    << value    << std::endl;
}

iterating map javascript

map.forEach(function(value, key) {
  console.log(key + ' = ' + value);
})

javascript loop through array using .map

const loadAll = async function (imgArr) {
  try {
    let singleImage = imgArrItem => createImage(imgArrItem);
    // creates 3 promises
    const imgs = imgArr.map(singleImage);
    console.log(imgs);
  } catch (error) {
    console.log('Images not loaded');
  }
};
loadAll(['img/img-1.jpg', 'img/img-2.jpg', 'img/img-3.jpg']);