cjones-20101205-0.txt

Blog Title:  Clojure Libs and Namespaces: require, use, import, and ns (Part 1)
Author:      Colin Jones
Date:        December 5th, 2010

cjones-20101205-1.clj

user=> (clojure.string/split "name,address,city,state,zip,email,phone" #",")
java.lang.ClassNotFoundException: clojure.string (NO_SOURCE_FILE:0)

cjones-20101205-2.clj

user=> (require 'clojure.string)
nil
user=> (clojure.string/split "name,address,city,state,zip,email,phone" #",")
["name" "address" "city" "state" "zip" "email" "phone"]

cjones-20101205-3.clj

user=> (require 'clojure.string 'clojure.test)
nil
user=> (clojure.string/join " " ["name" "address" "city" "state" "zip" "email" "phone"])
"name address city state zip email phone"
user=> (clojure.test/is (= 1 2))

FAIL in clojure.lang.PersistentList$EmptyList@1 (NO_SOURCE_FILE:10)
expected: (= 1 2)
  actual: (not (= 1 2))
false

cjones-20101205-4.clj

user=> (require '[clojure.string :as string])
nil
user=> (string/capitalize "foo")
"Foo"

cjones-20101205-5.clj

(require ['clojure.string :as 'string])

cjones-20101205-6.clj

user=> (require 'clojure.string '[clojure.test :as test])
nil
user=> (test/is (= 1 1))
true

cjones-20101205-7.clj

user=> (require '(clojure string test))
nil

cjones-20101205-8.clj

user=> (require '(clojure [string :as string] test))
nil
user=> (string/join [1 2 3])
"123"

cjones-20101205-9.clj

user=> (require '[clojure.string :as string] :verbose)
(clojure.core/load "/clojure/string")
(clojure.core/in-ns 'user)
(clojure.core/alias 'string 'clojure.string)
nil