1var colors=["red","blue","green"];
2for (let i = 0; i < colors.length; i++) { 
3  console.log(colors[i]);
4}

1for (var i; i < 10; i++) {
2  
3}

1let array = ['Item 1', 'Item 2', 'Item 3'];
2
3array.forEach(item => {
4	console.log(item); // Logs each 'Item #'
5});

1var person = {"name":"taylor","age":31};
2for (property in person) {
3	console.log(property,person[property]);
4}
5//name taylor
6//age 31

1var subjects = {
2	'math': 85,
3	'physics': 75,
4}
5
6for (var i in subjects) {
7	console.log(i + ' : ' + subjects[i]);
8}
9
10// math : 85
11// physics : 75

1for(const key in object){
2  	// do stuff
3}
4// goes through the keys of an object