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Functions as Values: JavaScript: Uncharted

Courses JavaScriptFunctions as Values

Functions as Values

Pass behavior as data, return configured functions, curry reusable settings, and compose clear pipelines.

JavaScript
Unit 12 of 20
20 lessons
177 min
420 XP

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Lessons

20 total

1Tools That Take ToolsRecognize a higher-order tool whose behavior changes when another tool is supplied.InteractiveConcept6 min20 XPOpen
2Store It, Pass ItStore a function in a variable and pass that value into another function.CodeConcept8 min20 XPOpen
3Write Your Own repeatWrite a repeat function that invokes a callback a requested number of times.CodeConcept9 min20 XPOpen
4Callbacks CustomizeUse different callbacks to customize one applyToEach function.CodeConcept9 min20 XPOpen
5Build map YourselfRecreate the core behavior of map with a loop and a callback.CodeConcept10 min20 XPOpen
6Trace the Higher OrderPredict the arguments delivered to a callback during a higher-order traversal.InteractiveConcept7 min20 XPOpen
7Functions That Make FunctionsReturn a configured multiplier function that remembers its factor.CodeConcept9 min20 XPOpen
8Currying: One at a TimeBuild and read a curried function that accepts one argument per call.CodeConcept9 min20 XPOpen
9Curry Something RealCreate reusable price functions by currying a discount rate.CodeConcept9 min20 XPOpen
10Evaluate the Curried CallArrange the evaluation stages of a curried function call.InteractiveConcept7 min20 XPOpen
11Preset Some ArgumentsCreate a partially applied formatter by fixing one argument ahead of time.CodeConcept9 min20 XPOpen
12Compose TwoBuild a compose function that feeds one function result into another.CodeConcept9 min20 XPOpen
13Build a PipelineBuild a pipe function that runs a sequence of form-processing callbacks.CodeConcept10 min20 XPOpen
14Predict the CompositionPredict how reversing function composition changes a result.InteractiveConcept7 min20 XPOpen
15Logger WrapperReturn a wrapper that logs a function call and its result without changing behavior.CodePractice10 min20 XPOpen
16Input Pipeline WorkoutCompose a reusable cleaner for messy address text.CodePractice10 min20 XPOpen
17When Currying HelpsExplain when a preset function is clearer than repeating the same argument.InteractiveConcept9 min20 XPOpen
18Predicate LibraryCombine small reusable predicates into one filter condition.CodePractice10 min20 XPOpen
19Name That PatternMatch higher-order function snippets to callback, factory, currying, and composition patterns.InteractiveConcept8 min20 XPOpen
20Functions as Values Mastery CheckCombine callbacks, returned functions, currying, and composition in a reusable price reporter.CodeMastery check12 min40 XPOpen

Scope and Closures Recursion