/Javascript/React/React check if window exists

React check if window exists

Python check if file exists

import os

os.path.exists("file.txt") # Or folder, will return true or false

84

Source: guru99.com

Js check if function exists

if (typeof yourFunctionName == 'function') { 
  yourFunctionName(); 
}

2

Source: css-tricks.com

React check if window exists

if (typeof window !== 'undefined') {
    let paypal = require('paypal-checkout');
}

0

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