I have the following code that obviously works but I am fairly sure there is a more terse way of expressing this in coffeescript:
todos = []
for i in [1..10]
todos.push App.store.find App.Todo, i
todos = (App.store.find(App.Todo, i) for i in [1..10])
The enclosing parentheses indicate a list comprehension, which collects the return values into an array and returns it.
Consider the two following examples. The enclosing parentheses change how Coffeescript interprets the loop.
# With parentheses (list comprehension)
todos = (App.store.find(App.Todo, i) for i in [1..10])
# Without parentheses (plain old loop)
todos = App.store.find(App.Todo, i) for i in [1..10]
And the output:
// With parentheses
todos = (function() {
var _i, _results;
_results = [];
for (i = _i = 1; _i <= 10; i = ++_i) {
_results.push(App.store.find(App.Todo, i));
}
return _results;
})();
// Without parentheses
for (i = _i = 1; _i <= 10; i = ++_i) {
todos = App.store.find(App.Todo, i);
}
