how to use for in javascript 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

var i;
for (i = 0; i < 10 ; i++) {
  //do something
}

Example 3: for in loop javascript

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

Example 4: for of loop javascript

const array1 = ['a', 'b', 'c'];

for (const element of array1) {
  console.log(element);
}

// expected output: "a"
// expected output: "b"
// expected output: "c"

Example 5: loop javascript

//this is javascript
var speed = 100;
setInterval(function() {
//DO SOMETHING THAT REPEATS
},speed);

Example 6: javascript loop

let array = ["foo", "bar"]

let low = 0; // the index to start at
let high = array.length; // can also be a number

/* high can be a direct access too
	the first part will be executed when the loop starts 
    	for the first time
	the second part ("i < high") is the condition 
    	for it to loop over again.
    the third part will be executen every time the code 
        block in the loop is closed.
*/ 
for(let i = low; i < high; i++) { 
  // the variable i is the index, which is
  // the amount of times the loop has looped already
  console.log(i);
  console.log(array[i]); 
} // i will be incremented when this is hit.

// output: 
/*
	0
    foo
    1
    bar
*/