Merge pull request #328 from biswajitdas-007/javascript

String methods added

backend/nestjs.md

@@ -1,79 +0,0 @@
-# NestJS
-
-## Summary
-
-- [Introduction](#introduction)
-- [CLI Commands](#cli-commands)
-  - [Installation](#installation)
-  - [Usages](#usages)
-
-## Introduction
-
-**NestJS** is a framework for building efficient, scalable Node.js server-side applications. It uses progressive **JavaScript**, supports **TypeScript** and combines the element of **OOP** (Object Oriented Programming), **FP** (Functional Programming) & **FRP** (Functional Reactive Programming).
-
-[Back to Summary](#summary)
-
-## CLI Commands
-
-### Installation
-
-```code
-$ npm i -g @nestjs/cli
-```
-
-### Usages
-
-**1) nest new**
-
-```code
-$ npm new <project_name> [options]
-```
-
-**Options**
-
-| Option                  | Description                                                                       |
-| :---------------------- | :-------------------------------------------------------------------------------- |
-| _--dry-run_             | Report the changes made, but it doesn't affect the file system. <br/> Alias: _-d_ |
-| _--language [language]_ | Specify programming language (TS or JS).<br/> Alias: _-l_                         |
-
-**2) nest generate**
-
-```code
-$ nest generate <schematic> <name> [options]
-$ nest g <schematic> <name> [options]
-```
-
-where,<br/>
-_&lt;schematic&gt;_ - to generate. <br/>
-_&lt;name&gt;_ - name of the generated component. <br/>
-
-**Schematics**<br/>
-| Name | Description |
-| :---- | :---- |
-|app| Generates a new application within a monorepo|
-|library| Generates a new library within a monorepo|
-|class|Generate a new class|
-|controller|Generate a new controller|
-|decorator|Generate decorator |
-|filter|Generate a filter|
-|gateway|Generate a gateway|
-|guard|Generate a guard|
-|interface|Generate an interface|
-|interceptor|Generate an interceptor|
-|middleware|Generate a middleware|
-|module|Generate a module|
-|pipe|Generate a pipe|
-|provider|Generate a provider|
-|resolver|Generate a resolver|
-|service| Generate a service|
-|resource| Generates a new CRUD resource |
-
-**CRUD generator**
-
-| Commands      | Description                                         |
-| :------------ | :-------------------------------------------------- |
-| **nest g mo** | Generates a module for groping related components   |
-| **nest g co** | Generates a controller to define CRUD routes        |
-| **nest g s**  | Generates a service to implement the business logic |
-
-[Back to Summary](#summary)

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/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