Skip to content

Instantly share code, notes, and snippets.

View negarjf's full-sized avatar
🤓

Negar negarjf

🤓
View GitHub Profile
@negarjf
negarjf / UserProvider.jsx
Last active January 1, 2021 22:51
UserProvider step 1
import React, {createContext, useReducer} from 'react';
import initialState from "./initialState";
import reducer from "./reducer";
import useActions from "./useActions";
export const UserContext = createContext();
export const UserProvider = ({children}) => {
const value = {user: null};
@negarjf
negarjf / Timer.js
Last active November 3, 2019 06:24
Timer for count-down and count-up
/**
* Timer class for count-down and count-up
*/
class Timer {
constructor (duration = 0, countDown = true, step = 1) {
this.duration = duration;
this.countDown = countDown;
this.step = step;
this.opr = countDown ? -1 : 1;
this.currentTime = this.freshCurrentTime;
@negarjf
negarjf / keybase.md
Created October 26, 2019 19:04
Keybase

Keybase proof

I hereby claim:

  • I am negarjf on github.
  • I am negar (https://keybase.io/negar) on keybase.
  • I have a public key ASARovy66SnbNXqFxtOo766-ahZYD6nUfJgcMOOBei3fxgo

To claim this, I am signing this object:

class Stack{
constructor(){
this.top = null;
this.size = 0;
}
get isEmpty(){
return this.top === null;
}
class Queue {
constructor(){
this.head = null;
this.tail = null;
this.size = 0;
}
get length(){
return this.size;
}
class DynamicArray{
constructor(capacity){
this.arr = [];
this.capacity = capacity;
this.length = 0;
for(let i = 0; i < capacity; i++){
this.arr[i] = null;
}
class circularQueue{
constructor(max){
this.array = [];
this.max= max;
this.length = 0;
/**
* Find a Peak in an Array
* @param {number[]} nums
* @return {number}
*/
var findPeakElement = function(nums) {
let l = nums.length - 1;
let half = Math.floor(l / 2);
let testArray = [10, 25, 25, 12, 22, 11, 90];
console.log(sort(testArray));
function sort(array){
let length = array.length;
for(let i = 0; i < length; i++ ){
@negarjf
negarjf / .htaccess
Created February 17, 2019 08:41
.htaccess config for local cross origin problem
# .htaccess config for local cross origin problem
Header always set Access-Control-Allow-Origin "*"
Header always set Access-Control-Allow-Methods "POST, GET, OPTIONS, DELETE, PUT"
Header always set Access-Control-Max-Age "1000"
Header always set Access-Control-Allow-Headers "x-requested-with, Content-Type, origin, authorization, accept, client-security-token, cache-control"
RewriteEngine On
RewriteCond %{REQUEST_METHOD} OPTIONS