how to get key value pair in javascript array code example
Example 1: javascript iterate over object keys and values
const object1 = {
a: 'somestring',
b: 42
};
for (let [key, value] of Object.entries(object1)) {
console.log(`${key}: ${value}`);
}
Example 2: js key value array
var myArray = {id1: 100, id2: 200, "tag with spaces": 300};
myArray.id3 = 400;
myArray["id4"] = 500;
for (var key in myArray) {
console.log("key " + key + " has value " + myArray[key]);
}
Example 3: array of array key value javascript
var categories = [
{"1":"Category 1"},
{"2":"Category 2"},
{"3":"Category 3"},
{"4":"Category 4"}
];