Clojure Tutorial

● Clojure

✦Tutorial intro

✦Overview

✦Features

✦Environment

● Clojure Basics

✦Program structure

✦Hello world

✦Variables

✦comments

● Clojure Datatypes

✦Datatypes

✦Numeric types

✦integer

✦floating point

✦ratio

✦Character types

✦string

✦character

✦regular expression

✦Collections

✦list

✦vector

✦set

✦map

✦Atom

● Clojure Operators

✦Arithmetic operators

✦Relational operators

✦Logical operators

✦Bitwise operators

● Clojure Flow Control

✦if

✦Truth

✦if and do

✦when

✦cond

✦cond and else

✦case

✦case with else-expression

✦Iteration for Side Effects

✦dotimes

✦doseq

✦doseq with multiple bindings

✦Recursion

✦Recursion and Iteration

✦loop and recur

✦defn and recur

✦recur for recursion

● Clojure Functions

✦Overview

✦Creating Functions

✦Multi-arity functions

✦Variadic functions

✦Anonymous Functions

✦defn vs fn

✦Anonymous function syntax

✦Gotcha

✦Higher Order Functions

✦Applying Functions

✦apply

✦Locals and Closures

✦let

✦Closures

● Clojure String

✦explanation

✦String to char array

✦String operations

✦String functions

● Clojure Vectors

✦explanation

✦Indexed access

✦count

✦Constructing vectors

✦Adding elements

✦Immutability

✦vector oprtations

● Clojure Lists

✦explanation

✦Constructing

✦Adding elements

✦Stack access

✦List operations

● Clojure Sets

✦explanation

✦Adding to a set

✦Removing from a set

✦Checking containment

✦Sorted sets

✦into

● Clojure Maps

✦Overview

✦Creating a literal map

✦Adding new key-value pairs

✦Removing key-value pairs

✦Looking up by key

✦Looking up with a default

✦Checking contains

✦Keys or values

✦Building a map

✦Combining maps

✦Sorted maps

● Clojure Namespaces and names

✦Overview

✦Vars

✦Loading

✦Declaring namespaces

✦Refer

✦require

● Clojure Exception Handling

✦Overview

✦try

✦catch

✦finally

✦throw

✦assert

● Clojure Sequences

✦Overview

✦Creating Sequences

✦Sequence Operations

✦Lazy Sequences and Infinite Sequences

✦Sequence Transformations

✦Sequence Comprehensions

● Clojure Regular Expressions

✦Overview

✦Creating Regular Expressions

✦Matching Patterns

✦Replacing Patterns

● Clojure Predicates

✦Overview

✦Built-in Predicates

✦Creating Custom Predicates

✦Predicates functions

● Clojure Destructuring

✦Overview

✦Destructuring Lists and Vectors

✦Destructuring Maps

✦Nested Destructuring

✦Destructuring in Function Arguments

● Clojure Date & Time

✦Overview

✦Working with java.util.Date

✦Using java.time

✦Formatting and Parsing Date time

✦Time Zones and Durations

● Clojure Atoms

✦Overview

✦Creating Atoms

✦Reading and Updating Atom Values

✦Atomic Operations and Concurrency

✦Using compare-and-set!

✦Understanding Atom State

● Clojure Metadata

✦Overview

✦Attaching Metadata

✦Retrieving Metadata

✦Using Metadata for Documentation

✦Metadata and Data Structures

✦Metadata and Namespaces

● Clojure StructMaps

✦Overview

✦Defining StructMaps

✦Creating StructMap Instances

✦Accessing StructMap Fields

✦Advantages of StructMaps

✦When to Use StructMaps

● Clojure Agents

✦Overview

✦Creating Agents

✦Sending Actions to Agents

✦Agent State and Asynchronous Operations

✦Error Handling with Agents

✦Using await and await-for

● Clojure Watchers

✦Overview

✦Adding Watchers to Atoms and Agents

✦Watcher Functions and Callbacks

✦Monitoring State Changes

✦Removing Watchers

✦Use cases for watchers.

● Clojure Macros

✦Overview

✦Understanding Macro Expansion

✦Defining Macros

✦Syntax Quoting and Unquoting

✦Creating Custom Language Constructs

✦Macro Hygiene and Best Practices

● vector method

✦conj

✦peek

✦pop

✦get

✦assoc

✦subvec

✦rseq

● List method

✦cons

✦conj

✦peek

✦pop

✦first

✦rest

● Maps method

✦assoc

✦assoc-in

✦dissoc

✦find

✦key

✦val

✦keys

✦vals

✦get

✦get-in

✦update

✦update-in

✦select-keys

✦merge

✦merge-with

✦reduce-kv

● Sets method

✦difference

✦index

✦intersection

✦join

✦map-invert

✦project

✦rename

✦rename-keys

✦select

✦subset?

✦superset?

✦union

● Sequences method

✦first

✦second

✦last

✦rest

✦next

✦ffirst

✦nfirst

✦fnext

✦nnext

✦nth

✦nthnext

✦nthrest

✦rand-nth

✦butlast

✦take

✦take-last

✦take-nth

✦take-while

✦drop

✦drop-last

✦drop-while

● Math method

✦acos

✦add-exact

✦asin

✦atan

✦atan2

✦cbrt

✦ceil

✦copy-sign

✦cos

✦cosh

✦decrement-exact

✦exp

✦expm1

✦floor

✦floor-div

✦floor-mod

✦get-exponent

✦hypot

✦increment-exact

✦log

✦log10

✦log1p

✦multiply-exact

✦negate-exact

✦next-after

✦next-down

✦next-up

✦pow

✦random

✦rint

✦round

✦scalb

✦signum

✦sin

✦sinh

✦sqrt

✦subtract-exact

✦tan

✦tanh

✦to-degrees

✦to-radians

✦ulp

● String method

✦blank?

✦capitalize

✦ends-with?

✦escape

✦includes?

✦index-of

✦join

✦last-index-of

✦lower-case

✦re-quote-replacement

✦replace

✦replace-first

✦reverse

✦split

✦split-lines

✦starts-with?

✦trim

✦trim-newline

✦triml

✦trimr

✦upper-case

Clojure Namespaces and names → Overview

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