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map

  • Edit on GitHub

Map the values in this list to another list.

list.map(callback[, thisArg])

Loops through the values of the list, calling callback for each one until the list ends. The return values of callback are used to populate the returned list.

var todos = new DefineList([
  {name: "dishes", complete: false},
  {name: "lawn", complete: true}
]);
var names = todos.map(function(todo){
  return todo.name;
});
names //-> DefineList["dishes","lawn"]

Parameters

  1. callback {function(item, index, list)}:

    A function to call with each element of the DefineList. The three parameters that callback gets passed are:

    • item (*) - the element at index.
    • index (Integer) - the index of the current element of the list.
    • list (DefineList) - the DefineList the elements are coming from.

    The return value of callback, including undefined values are used to populate the resulting list.

  2. thisArg {Object}:

    The object to use as this inside the callback.

Returns

{can-define/list/list}:

a new DefineList with the results of the map transform.

CanJS is part of DoneJS. Created and maintained by the core DoneJS team and Bitovi. Currently 3.14.1.

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