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import React, { useContext, useCallback } from 'react';

export const FeatureFlagContext = React.createContext<string[]>([]);

export const useFeatureFlag = () => {
  const features = useContext<string[]>(FeatureFlagContext);

  const hasFeature = useCallback(
    (feature: string) => {
      return features.includes(feature);

pavanmehta91

Migrations & Seeding

What are migrations??

Migrations are a way to make database changes or updates, like creating or dropping tables, as well as updating a table with new columns with constraints via generated scripts. We can build these scripts via the command line using knex command line tool.

To learn more about migrations, check out this article on the different types of database migrations!

Creating/Dropping Tables

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---
version: 1.0
domains:
- joybird.com
url_patterns:
- joybird.com/*
timestamp: '2018-08-02T06:51:46Z'
id: 9Ul4
redirect_url: https://joybird.com/sofas/eliot-sofa/#p_option_19
shared_via: StyleURL - (https://styleurl.app) import and export CSS changes from Chrome

pavanmehta91

Asset,Type,Asset Value,Debt,Net Value,Change vs 2015,Change,Stake,Latitude,Longitude,Notes
Trump Tower (New York City),Office and retail,471,100,371,-159,Down,1,40.768277,-73.981455,Opened 1983
1290 Avenue of the Americas (New York City),Office and retail,2310,950,408,-62,Down,0.3,40.768277,-73.981455,
Niketown (New York City),Office and retail,400,10,390,-52,Down,1,40.768277,-73.981455,Ground lease through 2079
40 Wall Street (New York City),Office and retail,501,156,345,-28,Down,1,40.768277,-73.981455,
Trump Park Avenue (New York City),Residential and retail,191,14.3,176.7,-27,Down,1,40.768277,-73.981455,"49,564 sq. ft. of condos; 27,467 sq. ft. of retail"
Trump Parc/Trump Parc East (New York City),Residential and retail,88,0,88,17,Up,1,40.768277,-73.981455,"11,750 sq. ft. of condos; 14,963 sq. feet of retail; 13,108 sq. ft. of garage"
"Trump International Hotel and Tower, Central Park West (New York City)","Hotel, condos and retail",38,0,38,21,Up,1,40.768277,-73.981455,
"Trump World Tower, 845 United Natio

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Collections

each(array)

Underscore example:

_.each([1, 2, 3], function(num) { alert(num); });

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img.grayscale.disabled {
    filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'matrix\' values=\'1 0 0 0 0, 0 1 0 0 0, 0 0 1 0 0, 0 0 0 1 0\'/></filter></svg>#grayscale");
    -webkit-filter: grayscale(0%);
}