Merge branch 'master' into nikhilkalburgi-patch-1

Byobu_CheatSheet.md

@@ -33,4 +33,12 @@ Byobu/Tmux:
 	#Kill split in focus
 		Ctrl + F6
 
-	 
+	#Join all splits
+		Shift + F5
+
+	#Kill the current window
+		Ctrl + A + K
+
+	#Move focus to next split
+		Shift + F3
+

Elasticsearch_CheatSheet.md

@@ -59,3 +59,10 @@
 
         #Check pending tasks
                 curl -XGET http://localhost:9200/_cat/pending_tasks?v
+          
+        #Query using URL parameters
+                curl -X GET http://localhost:9200/samples/_search?q=school:Harvard
+                
+        #List index mapping
+                curl -X GET http://localhost:9200/samples
+

Flexbox_CheatSheet.md

@@ -0,0 +1,67 @@
+
+
+	#Allow Flexbox display
+		display: flex;
+
+	#Align items horizontally
+		justify-content:
+			#Options include:
+				flex-start; - items align to left of container
+				flex-end; - items align to right of container
+				center; - items align at center of container
+				space-between; - equal spacing between items, with first at start and final at end
+				space-around; - equal spacing around items
+				space-evenly; - even spacing around items with a full space at either end
+
+	#Align items vertically
+		align-items:
+			#Options include:
+				flex-start; - items align to top of container
+				flex-end; - items align to bottom of container
+				center; - items align to vertical center of container
+				baseline; - items align to baseline of container
+				stretch; - items stretched to fit
+
+	#Change direction
+		flex-direction:
+			#Options include:
+				row; - items placed the same as text direction
+				row-reverse; - items placed opposite to text direction
+				column; - items are placed top to bottom
+				column-reverse: items are placed bottom to top
+
+	#Align specific item
+		align-self:
+			#Options include same values as 'align-items' but for a specific item
+			#Overrides 'align-items'
+
+	#Wrap items
+		flex-wrap:
+			#Options include:
+				nowrap: every items is fit to a single line
+				wrap: items wrap around to additional lines
+				wrap-reverse: items wrap around to additional lines in reverse
+
+	#Combination of direction and wrap
+		flex-flow:
+			#Options include:
+				row wrap; - sets rows and wraps them
+				row nowrap;
+				row reverse nowrap;
+				column reverse;
+				column wrap-reverse
+				column wrap
+
+	#Space multiple lines a certain way
+		align-content:
+			#Options include:
+				flex-start; - lines packed at top of container
+				flex-end; - lines packed at bottom of container
+				center; lines packed at vertical center of container
+				space-between: lines display with equal spacing between them
+				space-around: lines display with equal spacing around them
+				stretch: lines are stretched to fit the container
+
+	#Order items
+		order:
+			#Can be positive or negative. Default order value of 0.

Flutter_cheatsheet.md

@@ -0,0 +1,112 @@
+# Flutter
+
+   CheatSheet
+
+      # confirm if your flutter SDK is set up correctly and compatible with other platforms, devices and IDE.
+         `flutter doctor` or `flutter doctor -v`
+
+
+      # create a new flutter project from terminal
+         `flutter create NAME_OF_APP`
+      
+
+      # create a new flutter project and replace the default package name flutter gives you com.example.myappname
+         `flutter create –org com.mywebsite NAME_OF_APP`
+
+
+      # set a specific language for the Android app and iOS; here we use Java for Android and objective-C for iOS
+         `flutter create --org=com.mywebsite --android-language=java --ios-language=objc NAME_OF_APP`
+
+
+      # mistakenly deleted a file, create it with its boilerplate codes. This will replace all missing files without creating everything from scratch
+         `flutter create --no-overwrite --org=com.mywebsite.NAME_OF_APP`
+
+
+      # list all devices connected and supported by the Flutter SDK
+         `flutter devices`
+
+      # get current device id
+         `flutter --device-id`
+
+
+      # flutter help
+         `flutter -h`
+
+
+      # run a flutter app
+         `flutter run`
+
+
+      # to see more outputs while app is trying to build in debug mode
+         `flutter run -v `
+
+
+      # after making stateless change(changing font size, color, widget size, shape, etc)
+         `Hot Reload (r): tap small r while app is running`
+
+
+      # after you make changes to class instances or things that will affect app’s current state
+         `Hot Restart(R): tap big R while app is running`
+
+
+      # take a screenshot from the terminal:
+         `tap small (s) when running the app in debug mode`
+
+
+      # lost connecting while debugging, connect your app back via
+         `flutter attach -d <target-platform-name` or simply `flutter attach`
+
+
+      # show all available options while your app is running in debug mode:
+         `press small (h)`
+
+
+      # list flutter channels.
+         `flutter channel`
+
+
+      # switch to a flutter channel
+         `flutter channel CHANNEL_NAME`
+
+
+      # upgrade your Flutter SDK with Dart
+         `flutter upgrade`
+
+
+      # get current flutter version
+         `flutter --version`
+
+
+      # list, launch or create emulators
+         `flutter emulators`
+
+
+      # generate localizations for the Flutter project
+         `flutter gen-l10n PATH_TO_TRANSLATION_FILE`
+
+
+      # format a dart file
+         `flutter format PATH_TO_DART_FILE`
+
+
+      # run your tests packages
+         `flutter test PATH_TO_TEST_FILE`
+
+      # add a third party package
+         `flutter pub add NAME_OF_PACKAGE`
+
+
+      #  download the third party package
+         `flutter pub get`
+      
+
+      # remove every temporary files & folders
+         `flutter clean`
+
+
+      # build the APK file
+         `flutter build apk`
+
+
+      #Tip: speed up Flutter Development
+         use the third packages to suit your needs. Google first.

Git_CheatSheet.md

@@ -178,3 +178,6 @@
 
 	#Stashing everything (including ignored files)
 		git stash --all
+
+	#Push code from working branch to another branch 
+		git push origin branch1: branch2

InfluxDB_Cheatsheet

@@ -0,0 +1 @@
+

JavaScript_CheatSheet.md

@@ -0,0 +1,126 @@
+JavaScript:
+
+    # Declare a variable using let or const.
+        let myVariable = 'hello';
+        const myConstant = 42;
+
+    # Log a message to the console.
+        console.log('Hello, world!');
+
+    # Alert a message to the user.
+        alert('Hello, user!');
+
+    # Prompt the user for input.
+        let userInput = prompt('What is your name?');
+
+    # Declare a function.
+        function myFunction(arg1, arg2) {
+            Function body goes here.
+        }
+
+    # Call a function.
+        myFunction(value1, value2);
+
+    # Declare an object.
+        let myObject = {
+            key1: 'value1',
+            key2: 'value2',
+            key3: 'value3',
+        };
+
+    # Access an object's property.
+        myObject.key1;
+
+    # Declare an array.
+        let myArray = [1, 2, 3, 4];
+
+    # Access an array's element.
+        myArray[0];
+
+    # Declare a for loop.
+        for (let i = 0; i < myArray.length; i++) {
+            Loop body goes here.
+        }
+
+    # Declare a while loop.
+        while (condition) {
+            Loop body goes here.
+        }
+
+    # Declare an if statement.
+        if (condition) {
+            Code to execute if condition is true.
+        }
+
+    # Declare an if-else statement.
+        if (condition) {
+            Code to execute if condition is true.
+        } else {
+            Code to execute if condition is false.
+        }
+
+    # Declare a switch statement.
+        switch (expression) {
+            case value1:
+                Code to execute if expression equals value1.
+                break;
+            case value2:
+                Code to execute if expression equals value2.
+                break;
+            default:
+                Code to execute if expression doesn't match any case.
+        }
+
+    # Declare a try-catch block.
+        try {
+            Code that might throw an error.
+        } catch (error) {
+            Code to handle the error.
+        }
+
+    # Declare a timeout function.
+        setTimeout(function() {
+            Code to execute after a delay.
+        }, delay);
+
+    # Declare an interval function.
+        setInterval(function() {
+            Code to execute repeatedly at an interval.
+        }, interval);
+
+    # Declare a callback function.
+        function myFunction(callback) {
+            Code to execute before the callback.
+            callback();
+            Code to execute after the callback.
+        }
+
+    # Declare a promise.
+        let myPromise = new Promise(function(resolve, reject) {
+            Code that might resolve or reject the promise.
+        });
+
+    # Use the then method of a promise.
+        myPromise.then(function(result) {
+            Code to execute if the promise resolves successfully.
+        }).catch(function(error) {
+            Code to execute if the promise is rejected.
+        });
+
+    # Declare a class.
+        class MyClass {
+            constructor(arg1, arg2) {
+                Constructor code goes here.
+            }
+            myMethod(arg1, arg2) {
+                Method body goes here.
+            }
+        }
+
+    # Declare a module.
+        export function myFunction(arg1, arg2) {
+            Code to export goes here.
+        }
+
+    # Import a module
+        import { myFunction } from './my-module.js';

K8s_CheatSheet.md

@@ -1,3 +1,6 @@
+        #Get the documentation for pod manifests
+                kubectl explain pods
+                
         #Get total nodes in cluster
                 kubectl get nodes
                 
@@ -10,5 +13,27 @@
         #List contexts added in .kube config
                 kubectl config list-contexts
                 
+        #List the running Pods:
+                kubectl get pods
+                
         #Select the context to use
                 kubectl config use-context <context name>
+
+        #Get the password for the e2e user
+                kubectl config view -o jsonpath='{.users[?(@.name == "e2e")].user.password}'
+
+        #Get all pods in all namespaces and list from most resource hungry to less
+                kubectl top pod --all-namespaces | sort --reverse --key 3 --numeric | less
+                
+        #Describe specific pod in deployment that is in the selected namespace with a bit more detail
+                kubectl -n <namespace> describe deployments.apps <pod name>
+                
+        #Delete resources
+                kubectl delete
+
+        #Get a deployment's status subresource       
+                kubectl get deployment nginx-deployment --subresource=status
+
+        #List all services in the namespace       
+                kubectl get services                
+