Javascript indexOf method with multiple values

Question

I have an array wich contains multiple same values

[\"test234\", \"test9495\", \"test234\", \"test93992\", \"test234\"]
         


        

Answer 1

This kind of function doesn't exist built in, but it would be pretty easy to make it yourself. Thankfully, indexOf can also accept a starting index as the second parameter.

function indexOfAll(array, searchItem) {
  var i = array.indexOf(searchItem),
      indexes = [];
  while (i !== -1) {
    indexes.push(i);
    i = array.indexOf(searchItem, ++i);
  }
  return indexes;
}

var array = ["test234", "test9495", "test234", "test93992", "test234"];
document.write(JSON.stringify(indexOfAll(array, "test234")));