for loop function 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: loop an array in javascript

let array = ["loop", "this", "array"]; // input array variable
for (let i = 0; i < array.length; i++) { // iteration over input
	console.log(array[i]); // logs the elements from the current input
}

Example 3: for loop

// this is javascript, but can be used in any language 
// with minor modifications of variable definitions

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
*/

Example 4: for loop

// Unity for loop coroutine (repeat something every x seconds for x time)

Coroutine doThisCoroutine; // (Create a coroutine for stopping)
int duration = 5 // (Duration, whatever you want it to be)
float waitTime = 1 // Wait time to iterate in seconds, usually 1

void Awake(){
  
  DoThisCoroutine = StartCoroutine(DoThis()); // Start the coroutine
    
}
    
IEnumerator DoThis(){
  
  while (enabled){ // While the behavior is enabled,
  
    for (int x = 0; x < Duration; x++){ // From zero until 5 incrementing by 1...
    
      print("Doing This!"); // Do whatever...
  	
      yield return new WaitForSeconds(waitTime) // Every second.
  
  	}
  
  }

}

Example 5: for loop

for (let i = 0; i < substr.length; ++i) {
    // do something with `substr[i]`
}

Example 6: how to use for loops to work with array in javascript

let myArray = ["one", "two", "three", "four"];