pradeepsng30

As programmers, we must configure Spring. Spring must know:

Where to start In this case, start with SpringApplication.run() Which classes the container must process In this case, use Annotations How to create instances of classes For Spring annotations, use @Component, @Service, @Bean, etc. For JSR330 annotations, use @Named

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kill process at port 8000

kill -9 $(lsof -ti:8000) kill -9 $(lsof -ti:8000,8443)

kill all node processs

killall node

pradeepsng30

Learnings

linear combination of integers can form k if k% gcd(elements) is zero.

• PRoblem : https://www.codechef.com/SEPT19A/problems/FUZZYLIN
• reference : https://stackoverflow.com/questions/47583925/how-to-check-if-an-integer-is-linear-combination-of-elements-in-an-array/47584726#47584726

constraint of equation ax2+2bxy+cy2>0 is b2-ac<0

• PRoblem : https://www.codechef.com/SEPT19A/problems/LAPD

pradeepsng30

https://medium.com/@FloSloot/node-js-is-not-single-threaded-88928ada5838



If you were anything like me, you would’ve come here thinking:

What the heck is he talking about?! Of course Node.js is single threaded!
But that’s only partially true! Bare with me.

TL;DR

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#In your ~/.gitconfig you can put something like this.
# git version > 2.13
# https://stackoverflow.com/questions/8801729/is-it-possible-to-have-different-git-config-for-different-projects/43884702#43884702
[includeIf "gitdir:~/company_a/"]
  path = .gitconfig-company_a
[includeIf "gitdir:~/company_b/"]
  path = .gitconfig-company_b

pradeepsng30

https://github.com/FreemanZhang/system-design

pradeepsng30

To make this a little more concrete, let’s look at a couple of examples. First off, let’s take a look at some simple cases, starting with some uses of ramda:

import { merge, add } from 'ramda'

export const withDefaultConfig = (config) =>
  merge({ path: '.' }, config)

export const add5 = add(5)
The first example here is pretty obvious: in withDefaultConfig, merge is used purely as an implementation detail, so it’s safe, and it’s not part of the module’s interface. In add5, the example is a little trickier: the result of add(5) is a partially-applied function created by Ramda, so technically, a Ramda-created value is a part of this module’s interface. However, the contract add5 has with the outside world is simply that it is a JavaScript function that adds five to its argument, and it doesn’t depend on any Ramda-specific functionality, so ramda can safely be a non-peer dependency.

pradeepsng30

JS learnings

things to note in JS while learning them. putting from my private notes to public gist.

TODO

• hoisting
• Scope of var
• inheritence in es5
• currying
• setTimeout