Let's consider a scenario where we have an array of letters:
const letters = ['a','b','c','d'];
In addition, we have a function that requires a string argument letter and generates a concatenated output of that letter along with a random number.
function letterNumber(letter) {
console.log(letter + '-' + Math.random());
}
The objective is to iterate through the letters array, executing the letterNumber function N times at regular intervals of X milliseconds for each item in the array, passing the array item to the letter function argument.
What would be the most optimal and efficient approach to achieve this task? Thank you!
UPDATE
An improvement has been made by relocating the let iterator=0; statement within the anonymous function within the code snippet below. When dealing with a large number of values in the letters array, is there a more effective way to handle this?
const letters = ['a','b','c','d'];
const interval = 1000;
const runCount = 5;
function letterNumber(letter) {
console.log(letter+'_'+Math.random());
}
for (let i = 0; i < letters.length; i++) {
(function(i) {
let iterator = 0;
let iter = setInterval(function() {
if (iterator > runCount-1) {
clearInterval(iter);
} else {
letterNumber(letters[i]);
iterator++;
}
}, interval)
})(i);
}