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javascript/examples/1_2_arrays.js

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+"use strict";
+
+chapter("Arrays");
+
+section("Like in Java?");
+example("as = [10, 20, 30]");
+println("as -> [" + as +"]");
+example("as.length");
+example("as[2]");
+example("as[3]");
+
+subsection("Mostly");
+example("as['2']");
+example("as[2.0]");
+example("as['2.0']");
+example("as.constructor.name");
+
+section("Variable length");
+subsection("push/pop");
+example("as = new Array(10, 20, 30)");
+example("as.push(40, 50)");
+dumpArray(as);
+example("as.pop()");
+dumpArray(as);
+example("as.pop()");
+dumpArray(as);
+
+subsection("unshift/shift");
+example("as.unshift(60, 70)");
+dumpArray(as);
+example("as.shift()");
+dumpArray(as);
+example("as.shift()");
+dumpArray(as);
+
+
+section("Weird indices");
+example("as[3] = 80");
+dumpArray(as);
+example("as[10] = 90");
+dumpArray(as);
+example("    typeof(as[5])");
+
+example("as[-1] = 100");
+dumpArray(as);
+example("   as[-1]");
+
+example("as['2.0'] = 110");
+dumpArray(as);
+example("    as['2.0']");
+
+example("as['hello'] = 120");
+dumpArray(as);
+example("    as['hello']");
+
+
+section("Enumeration")
+
+print("Indexed for")
+for (var i = 0; i < as.length; i++) {
+    example("    as[i]");
+}
+
+
+print("for of")
+for (var a of as) {
+    example("    a");
+}