:foobar
:2
-:?
-:foo/bar---Rich Hickey - -Why are we doing this? Because Clojure -rocks , and JavaScriptreaches .
---Rich Hickey - -We can make the same exact software we are making today with dramatically simpler -stuff — dramatically simpler languages, tools, techniques, approaches. -
This is a list of translations of the book:
+Ukrainian: https://lambdabooks.github.io/clojurescript-unraveled/
+:foobar
:2
-:?
-:foo/barWhen prefixing keywords with a double colon ::, the keyword will be prepended by the name of the current namespace.
+Note that namespacing keywords affects equality comparisons.
---
+::foo
+;; => :cljs.user/foo(= ::foo :foo) +;; ⇒ false +---
+Another alternative is to include the namespace in the keyword literal, this is useful when creating namespaced keywords +for other namespaces:
+---
+:cljs.unraveled/foo
+;; => :cljs.unraveled/foo
+---The keyword function has an arity-2 variant where we can specify the namespace as the first parameter:
---
+(keyword "cljs.unraveled" "foo")
+;; => :cljs.unraveled/foo
+---cd myapp
+cd myapp
java -cp ../cljs.jar:src clojure.main build.clj
cd mywebapp;
+cd mywebapp;
java -cp ../cljs.jar:src clojure.main build.clj
<!DOCTYPE html>
-<html>
- <header>
- <meta charset="utf-8" />
- <title>Hello World from ClojureScript</title>
- </header>
- <body>
- <script src="main.js"></script>
- </body>
-</html>$ java -cp ../cljs.jar:src clojure.main watch.clj
+$ java -cp ../cljs.jar:src clojure.main watch.clj
Building ...
Reading analysis cache for jar:file:/home/niwi/cljsbook/playground/cljs.jar!/cljs/core.cljs
Compiling src/mywebapp/core.cljs
Compiling out/cljs/core.cljs
Using cached cljs.core out/cljs/core.cljs
-... done. Elapsed 0.754487937 seconds
+... done. Elapsed 0.754487937 seconds
Watching paths: /home/niwi/cljsbook/playground/mywebapp/src
$ java -cp cljs.jar:src clojure.main repl.clj
-To quit, type: :cljs/quit
-cljs.user=> (+ 1 2)
-3$ java -cp cljs.jar:src clojure.main repl.clj
+To quit, type: :cljs/quit
+cljs.user=> (+ 1 2)
+3$ rlwrap java -cp cljs.jar:src clojure.main repl.clj
-To quit, type: :cljs/quit
-cljs.user=> (+ 1 2)
-3$ rlwrap java -cp cljs.jar:src clojure.main repl.clj
+To quit, type: :cljs/quit
+cljs.user=> (+ 1 2)
+3<!DOCTYPE html>
-<html>
- <header>
- <meta charset="utf-8" />
- <title>Hello World from ClojureScript</title>
- </header>
- <body>
- <script src="main.js"></script>
- </body>
-</html>$ rlwrap java -cp cljs.jar:src clojure.main brepl.clj
+$ rlwrap java -cp cljs.jar:src clojure.main brepl.clj
Compiling client js ...
Waiting for browser to connect ...
[...]
-To quit, type: :cljs/quit
-cljs.user=> (+ 14 28)
-42$ lein version
-Leiningen 2.5.1 on Java 1.8.0_45 OpenJDK 64-Bit Server VM$ lein version
+Leiningen 2.5.1 on Java 1.8.0_45 OpenJDK 64-Bit Server VM$ lein new mies leapyears
-$ cd leapyears # move into newly created project directory$ lein new mies leapyears
+$ cd leapyears # move into newly created project directory<section class="viewport">
- <div id="result">
+<section class="viewport">
+ <div id="result">
----
- </div>
- <form action="" method="">
- <label for="year">Enter a year</label>
- <input id="year" name="year" />
- </form>
-</section>
+ </div>
+ <form action="" method="">
+ <label for="year">Enter a year</label>
+ <input id="year" name="year" />
+ </form>
+</section>$ ./scripts/watch$ ./scripts/watch$ lein new mies mytestingapp
-$ cd mytestingapp$ lein new mies mytestingapp
+$ cd mytestingapp$ mkdir -p test/mytestingapp
-$ touch test/mytestingapp/core_tests.cljs$ mkdir -p test/mytestingapp
+$ touch test/mytestingapp/core_tests.cljs$ ./scripts/watch
+$ ./scripts/watch
Building ...
Copying jar:file:/home/niwi/.m2/repository/org/clojure/clojurescript/1.9.36/clojurescript-1.9.36.jar!/cljs/core.cljs to out/cljs/core.cljs
Reading analysis cache for jar:file:/home/niwi/.m2/repository/org/clojure/clojurescript/1.9.36/clojurescript-1.9.36.jar!/cljs/core.cljs
Compiling out/cljs/core.cljs
-... done. Elapsed 3.862126827 seconds
+... done. Elapsed 3.862126827 seconds
Watching paths: /home/niwi/cljsbook/playground/mytestingapp/test, /home/niwi/cljsbook/playground/mytestingapp/src
$ node out/mytestingapp.js
+$ node out/mytestingapp.js
Testing mytestingapp.core-tests
FAIL in (my-first-test) (cljs/test.js:374:14)
-expected: (= 1 2)
- actual: (not (= 1 2))
+expected: (= 1 2)
+ actual: (not (= 1 2))
Ran 1 tests containing 1 assertions.
1 failures, 0 errors.
@@ -5777,7 +5834,7 @@ 4.6.1. First steps<
$ node out/mytestingapp.js
+$ node out/mytestingapp.js
Testing mytestingapp.core-tests
@@ -5917,8 +5974,8 @@ 4.6.4.
$ node out/mytestingapp.js
-$ echo $?$ node out/mytestingapp.js
+$ echo $?$ lein new figwheel age
+$ lein new figwheel age
Retrieving figwheel/lein-template/0.3.5/lein-template-0.3.5.pom from clojars
Retrieving figwheel/lein-template/0.3.5/lein-template-0.3.5.jar from clojars
Generating fresh 'lein new' figwheel project.
-$ cd age # move into newly created project directory
+$ cd age # move into newly created project directory<!DOCTYPE html>
-<html>
- <head>
- <link href="css/style.css" rel="stylesheet" type="text/css">
- <meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
- </head>
- <body>
- <div id="app">
- <h1>Age in Days</h1>
- <p>
+<html>
+ <head>
+ <link href="css/style.css" rel="stylesheet" type="text/css">
+ <meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
+ </head>
+ <body>
+ <div id="app">
+ <h1>Age in Days</h1>
+ <p>
Enter your age in years:
- <input type="text" size="5" id="years">
- <button id="calculate">Calculate</button>
- </p>
- <p id="feedback"></p>
- </div>
- <script src="js/compiled/age.js" type="text/javascript"></script>
- </body>
-</html>$ lein figwheel
+$ lein figwheel
Retrieving lein-figwheel/lein-figwheel/0.5.2/lein-figwheel-0.5.2.pom from clojars
Retrieving figwheel-sidecar/figwheel-sidecar/0.5.2/figwheel-sidecar-0.5.2.pom from clojars
Retrieving org/clojure/clojurescript/1.7.228/clojurescript-1.7.228.pom from central
-... # much more output
+... # much more output
Prompt will show when Figwheel connects to your application
$ rlwrap lein figwheel
-To quit, type: :cljs/quit
+$ rlwrap lein figwheel
+To quit, type: :cljs/quit
cljs.user=>