README.md

Async

Standard library async utilities.

Usage

var ns = require( '@stdlib/utils/async' );

ns

Standard library async utilities.

var o = ns;
// returns {...}

• anyByAsync( collection, [options,] predicate, done ): test whether at least one element in a collection passes a test implemented by a predicate function.
• anyByRightAsync( collection, [options,] predicate, done ): test whether at least one element in a collection passes a test implemented by a predicate function, iterating from right to left.
• bifurcateByAsync( collection, [options,] predicate, done ): split values into two groups according to a predicate function.
• composeAsync( ...fcn ): function composition.
• countByAsync( collection, [options,] indicator, done ): group values according to an indicator function and return group counts.
• doUntilAsync( fcn, predicate, done[, thisArg ] ): invoke a function until a test condition is true.
• doWhileAsync( fcn, predicate, done[, thisArg ] ): invoke a function while a test condition is true.
• everyByAsync( collection, [options,] predicate, done ): test whether all elements in a collection pass a test implemented by a predicate function.
• everyByRightAsync( collection, [options,] predicate, done ): test whether all elements in a collection pass a test implemented by a predicate function, iterating from right to left.
• forEachAsync( collection, [options,] fcn, done ): invoke a function once for each element in a collection.
• forEachRightAsync( collection, [options,] fcn, done ): invoke a function once for each element in a collection, iterating from right to left.
• functionSequenceAsync( ...fcn ): function sequence.
• groupByAsync( collection, [options,] indicator, done ): group values according to an indicator function.
• ifelseAsync( predicate, x, y, done ): if a predicate function returns a truthy value, return x; otherwise, return y.
• ifthenAsync( predicate, x, y, done ): if a predicate function returns a truthy value, invoke x; otherwise, invoke y.
• inmapAsync( collection, [options,] fcn, done ): invoke a function for each element in a collection and update the collection in-place.
• inmapRightAsync( collection, [options,] fcn, done ): invoke a function for each element in a collection and update the collection in-place, iterating from right to left.
• mapFunAsync( fcn, n, [options,] done ): invoke a function n times and return an array of accumulated function return values.
• mapKeysAsync( obj, [options,] transform, done ): map keys from one object to a new object having the same values.
• mapValuesAsync( obj, [options,] transform, done ): map values from one object to a new object having the same keys.
• noneByAsync( collection, [options,] predicate, done ): test whether all elements in a collection fail a test implemented by a predicate function.
• noneByRightAsync( collection, [options,] predicate, done ): test whether all elements in a collection fail a test implemented by a predicate function, iterating from right to left.
• reduceAsync( collection, initial, [options,] reducer, done ): apply a function against an accumulator and each element in a collection and return the accumulated result.
• reduceRightAsync( collection, initial, [options,] reducer, done ): apply a function against an accumulator and each element in a collection and return the accumulated result, iterating from right to left.
• someByAsync( collection, n, [options,] predicate, done ): test whether a collection contains at least n elements which pass a test implemented by a predicate function.
• someByRightAsync( collection, n, [options,] predicate, done ): test whether a collection contains at least n elements which pass a test implemented by a predicate function, iterating from right to left.
• tabulateByAsync( collection, [options,] indicator, done ): generate a frequency table according to an indicator function.
• trycatchAsync( x, y, done ): if a function does not return an error, invoke a callback with the function result; otherwise, invoke a callback with a value y.
• trythenAsync( x, y, done ): if a function does not return an error, invoke a callback with the function result; otherwise, invoke a second function.
• untilAsync( predicate, fcn, done[, thisArg ] ): invoke a function until a test condition is true.
• waterfall( fcns, clbk[, thisArg] ): execute functions in series, passing the results of one function as arguments to the next function.
• whileAsync( predicate, fcn, done[, thisArg ] ): invoke a function while a test condition is true.

Examples

var objectKeys = require( '@stdlib/utils/keys' );
var ns = require( '@stdlib/utils/async' );

console.log( objectKeys( ns ) );