for in loop js code example
Example 1: javascript for loop
var colors=["red","blue","green"];
for (let i = 0; i < colors.length; i++) {
console.log(colors[i]);
}
Example 2: javascript for loop
for (var i; i < 10; i++) {
}
Example 3: javascript for
let str = "";
for (let i = 0; i < 9; i++) {
str = str + i;
}
console.log(str);
Example 4: js loop through object
const obj = { a: 1, b: 2 };
Object.keys(obj).forEach(key => {
console.log("key: ", key);
console.log("Value: ", obj[key]);
} );
Example 5: loop an object in javascript
var p = {
"p1": "value1",
"p2": "value2",
"p3": "value3"
};
for (var key in p) {
if (p.hasOwnProperty(key)) {
console.log(key + " -> " + p[key]);
}
}
Example 6: javascript loop through array
var myStringArray = ["Hello","World"];
var arrayLength = myStringArray.length;
for (var i = 0; i < arrayLength; i++) {
console.log(myStringArray[i]);
}