array javascript loop code example

Example 1: loop through an array javascript

let array = ['Item 1', 'Item 2', 'Item 3'];

// Here's 4 different ways
for (let index = 0; index < array.length; index++) {
  console.log(array[index]);
}

for (let index in array) {
  console.log(array[index]);
}

for (let value of array) {
  console.log(value); // Will log value in array
}

array.forEach((value, index) => {
  console.log(index); // Will log each index
  console.log(value); // Will log each value
});

Example 2: javascript loop array

var data = {
  name: "root",
  contents: [
    {
      name: "A",
      contents: [
        {
          name: "fileA1",
          contents: ["Hello!"]
        }
      ]
    },
    {
      name: "B",
      contents: [
        {
          name: "dirB1",
          contents: [
            {
              name: "fileB1.1",
              contents: ["Hello!"]
            }
          ]
        }
      ]
    }
  ]
};

Example 3: ex: javascript loop array

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