array properties

last-endcode · last-endcode · commit e184dfb5b9ac · 2020-10-13T13:06:51.000+07:00
diff --git a/23_array_properties_method.js b/23_array_properties_method.js
@@ -0,0 +1,46 @@
+// Array method properties
+
+let name = ['edward', 'newgate', 'shirohige'];
+
+// length
+console.log(name.length); //3
+console.log(name[name.length - 1]); //shirohige
+
+console.log();
+
+// concat for combine
+console.log('Concat');
+let newMember = ['ace', 'marco', 'kurohige'];
+const mergeMember = name.concat(newMember);
+console.log(mergeMember);
+
+console.log();
+
+// reverse
+console.log('Reverse');
+console.log(mergeMember.reverse());
+
+// unshift - add array shanks on the beginning
+console.log('unshift');
+console.log(mergeMember.unshift('shanks'), mergeMember);
+
+// shift - remove array shanks on the beginning
+console.log('shift');
+console.log(mergeMember.shift(), mergeMember);
+
+// push - add array lutfi on the end
+console.log();
+console.log('push');
+console.log(name.push('lutfi', 'zoro', 'sanji'), name);
+
+// pop - remove array on the end
+console.log('pop');
+console.log(name.pop(), name); //remove sanji
+console.log(name.pop(), name); //remove Zoro
+
+// splice
+console.log();
+console.log('splice');
+console.log(name);
+console.log(name.splice(0, 3), name); //start index 0: edward and will stop on 3 :shirohige will remove, resulut lutfi
+console.log(name);
