Merge pull request #328 from biswajitdas-007/javascript

String methods added

languages/javascript.js

@@ -95,3 +95,9 @@ arr.reduce(callback[, initialValue])                 // Apply a function against
 arr.reduceRight(callback[, initialValue])            // Apply a function against an accumulator and each value of the array (from right-to-left) as to reduce it to a single value.
 arr.some(callback[, initialValue])                   // Returns true if at least one element in this array satisfies the provided testing function.
 arr.values()                                         // Returns a new Array Iterator object that contains the values for each index in the array.
+
+// String methods
+String.charAt(index)                                 // Returns the character at the specified index in a string.
+String.indexOf(character)                            // Returns the index of the first occurrence of a specified value in a string.
+String.substring(starting_index, ending_index)       // Returns a new string that is a subset of the original string.
+String.substring(starting_index)                     // Returns a substring from starting index to last index of string.

tools/HCL Terraform

@@ -1,68 +0,0 @@
-Terraform CLI tricks
-
-terraform -install-autocomplete #Setup tab auto-completion, requires logging back in
-Format and Validate Terraform code
-
-terraform fmt #format code per HCL canonical standard
-terraform validate #validate code for syntax
-terraform validate -backend=false #validate code skip backend validation
-Initialize your Terraform working directory
-
-terraform init #initialize directory, pull down providers
-terraform init -get-plugins=false #initialize directory, do not download plugins
-terraform init -verify-plugins=false #initialize directory, do not verify plugins for Hashicorp signature
-Plan, Deploy and Cleanup Infrastructure
-
-terraform apply --auto-approve #apply changes without being prompted to enter "yes"
-terraform destroy --auto-approve #destroy/cleanup deployment without being prompted for “yes”
-terraform plan -out plan.out #output the deployment plan to plan.out
-terraform apply plan.out #use the plan.out plan file to deploy infrastructure
-terraform plan -destroy #outputs a destroy plan
-terraform apply -target=aws_instance.my_ec2 #only apply/deploy changes to the targeted resource
-terraform apply -var my_region_variable=us-east-1 #pass a variable via command-line while applying a configuration
-terraform apply -lock=true #lock the state file so it can't be modified by any other Terraform apply or modification action(possible only where backend allows locking)
-terraform apply refresh=false # do not reconcile state file with real-world resources(helpful with large complex deployments for saving deployment time)
-terraform apply --parallelism=5 #number of simultaneous resource operations
-terraform refresh #reconcile the state in Terraform state file with real-world resources
-terraform providers #get information about providers used in current configuration
-Terraform Workspaces
-
-terraform workspace new mynewworkspace #create a new workspace
-terraform workspace select default #change to the selected workspace
-terraform workspace list #list out all workspaces
-Terraform State Manipulation
-
-terraform state show aws_instance.my_ec2 #show details stored in Terraform state for the resource
-terraform state pull > terraform.tfstate #download and output terraform state to a file
-terraform state mv aws_iam_role.my_ssm_role module.custom_module #move a resource tracked via state to different module
-terraform state replace-provider hashicorp/aws registry.custom.com/aws #replace an existing provider with another
-terraform state list #list out all the resources tracked via the current state file
-terraform state rm  aws_instance.myinstace #unmanage a resource, delete it from Terraform state file
-Terraform Import And Outputs
-
-terraform import aws_instance.new_ec2_instance i-abcd1234 #import EC2 instance with id i-abcd1234 into the Terraform resource named "new_ec2_instance" of type "aws_instance"
-terraform import 'aws_instance.new_ec2_instance[0]' i-abcd1234 #same as above, imports a real-world resource into an instance of Terraform resource
-terraform output #list all outputs as stated in code
-terraform output instance_public_ip # list out a specific declared output
-terraform output -json #list all outputs in JSON format
-Terraform Miscelleneous commands
-
-terraform version #display Terraform binary version, also warns if version is old
-terraform get -update=true #download and update modules in the "root" module.
-Terraform Console(Test out Terraform interpolations)
-
-echo 'join(",",["foo","bar"])' | terraform console #echo an expression into terraform console and see its expected result as output
-echo '1 + 5' | terraform console #Terraform console also has an interactive CLI just enter "terraform console"
-echo "aws_instance.my_ec2.public_ip" | terraform console #display the Public IP against the "my_ec2" Terraform resource as seen in the Terraform state file
-Terraform Graph(Dependency Graphing)
-
-terraform graph | dot -Tpng > graph.png #produce a PNG diagrams showing relationship and dependencies between Terraform resource in your configuration/code
-Terraform Taint/Untaint(mark/unmark resource for recreation -> delete and then recreate)
-
-terraform taint aws_instance.my_ec2 #taints resource to be recreated on next apply
-terraform untaint aws_instance.my_ec2 #Remove taint from a resource
-terraform force-unlock LOCK_ID #forcefully unlock a locked state file, LOCK_ID provided when locking the State file beforehand
-Terraform Cloud
-
-terraform login #obtain and save API token for Terraform cloud
-terraform logout #Log out of Terraform Cloud, defaults to hostname app.terraform.io

tools/ubuntu.sh

@@ -21,6 +21,7 @@ cat /proc/<process_id>/maps   # Show the current virtual memory usage of a Linux
 ip r # Display ip of the server
 
 lsof -i :9000 # List process running on port 9000
+kill -9 $(lsof -t -i:PORT) # Kill the process running on whichever port specified
 
 journalctl -u minio.service -n 100 --no-pager # List last 100 logs for specific service