array manipulation in javascript code example

Example 1: modify array elements javascript

Using a FOR loop, write a function addNumber which adds the argument n to each 
number in the array arr and returns the updated arr:
const addNumber=(arr, n)=>{  
  let arr1=[];
  for(let i=0;i<Math.max(arr.length);i++){
    arr1.push((arr[i]||0)+n)
  }
  return arr1;
} 
console.log(addNumber([4, 5, 6], 7)); // expected log [11, 12, 13]

Example 2: functions in arrays javascript

var argsContainer = ['hello', 'you', 'there'];
var functionsContainer = [];

for (var i = 0; i < argsContainer.length; i++) {
var currentArg = argsContainer[i]; 

  functionsContainer.push(function(currentArg){
    console.log(currentArg);
  });
};

for (var i = 0; i < functionsContainer.length; i++) {
  functionsContainer[i](argsContainer[i]);
}