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szabgab · Jun 28, 2021 · 75f7c91 · 75f7c91
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diff --git a/crystal/examples/random/class.cr b/crystal/examples/random/class.cr
@@ -0,0 +1,6 @@
+rnd = Random.new
+puts rnd.next_float
+puts rnd.next_int
+puts rnd.next_bool
+puts rnd.hex(3) # 6 characters from hex values
+puts rnd.base64(2)
diff --git a/crystal/examples/random/class.out b/crystal/examples/random/class.out
@@ -0,0 +1,5 @@
+0.17048389661361377
+-258843089
+false
+ba753d
+Fd4=
diff --git a/crystal/examples/random/rand.out b/crystal/examples/random/rand.out
@@ -0,0 +1,2 @@
+0.9567402323460531
+0
diff --git a/crystal/examples/random/seed.cr b/crystal/examples/random/seed.cr
@@ -0,0 +1,4 @@
+rnd = Random.new(23)
+puts rnd.next_float
+puts rnd.next_float
+puts rnd.next_float
diff --git a/crystal/examples/random/seed.out b/crystal/examples/random/seed.out
@@ -0,0 +1,3 @@
+0.6834386634915893
+0.8454063470402874
+0.4425350078089257
diff --git a/crystal/random.md b/crystal/random.md
@@ -9,10 +9,32 @@
 * Pseudo Random floating point number between 0 and 1
 
 ![](examples/random/rand.cr)
+![](examples/random/rand.out)
 
 ## Random in other parts of Crystal
 {id: other-random}
 
-* [shuffle](arrays-shuffle)
-* sample
+* [shuffle array](arrays-shuffle)
+* [sample array](arrays-sample)
+
+
+## Random as a class
+{id: random-class}
+{i: next_float}
+{i: next_int}
+{i: next_bool}
+{i: hex}
+{i: base64}
+
+![](examples/random/class.cr)
+![](examples/random/class.out)
+
+## Random - seed
+{id: random-seed}
+{i: seed}
+
+* Fixed random-looking numbers.
+
+![](examples/random/seed.cr)
+![](examples/random/seed.out)