0.0.2 • Published 10 years ago
dlutil v0.0.2
dlutil
Node.js utility functions.
Most functions have synchronous and asynchronous versions. All asynchronous versions of methods have Async appended to the function name.
partition
Partition a list according to keys returned from an iterator function.
var l = [1, 2, 3, 4, 5];
function evenOdd(n) {
return (n % 2 == 0) ? 'even' : 'odd';
}
var partitioned = dlutil.partition(l, evenOdd);
/*
partitioned = {
even: [2, 4],
odd: [1, 3, 5]
}
*/
And the async version
var l = [1, 2, 3, 4, 5];
function evenOdd(n, next) {
return next(null, (n % 2 == 0) ? 'even' : 'odd');
}
dlutil.partitionAsync(l, evenOdd, function(err, partitioned) {
/*
partitioned = {
even: [2, 4],
odd: [1, 3, 5]
}
*/
});