JAVASCRIPT

replace array element javascript

// Replace 1 array element at index with item 
arr.splice(index,1,item);

array replace javascript

function solution(inputArray, elemToReplace, substitutionElem) {
    return inputArray.map((x) => (x === elemToReplace ? substitutionElem : x));
}

javascript replace array element

array.splice(array.indexOf(valueToReplace), 1, newValue);

array replace javascript

function solution(inputArray, elemToReplace, substitutionElem) {
    return inputArray.map((item) => {
        if (item === elemToReplace) {
            return substitutionElem;
        }
        return item;
    });
}

js string replace array

String.prototype.replaceArray = function(find, replace) {
  var replaceString = this;
  for (var i = 0; i < find.length; i++) {
    replaceString = replaceString.replace(find[i], replace[i]);
  }
  return replaceString;
};