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// let -- обычная переменная. если обратиться к ней до объявления -- будет ошибка.
console.log(a) // Uncaught ReferenceError: a is not defined
let a = 1
console.log(a) // 1
// const -- такая же переменная, защищенная от полной перезаписи.
const b = 2
b = 3 // Uncaught TypeError: Assignment to constant variable.
// НО! содержимое самой переменной можно изменять, например:
@maurelian
maurelian / console.sol
Last active February 25, 2022 18:44
A JS style console.log() function for solidity.
pragma solidity ^0.4.10;
// Update: Just use HardHat's: https://github.com/nomiclabs/hardhat/blob/master/packages/hardhat-core/console.sol
// Enables event logging of the format `console.log('descriptive string', variable)`,
// without having to worry about the variable type (as long as an event has been declared for that type in the
// Console contract.
contract Console {
event LogUint(string, uint);
@atoponce
atoponce / password_strength.md
Last active July 11, 2019 04:20
A document evaluating different open source password generators and password strength testers. See the other Gists at the end of the document for the password results.

Open Source Password Generator / Strength Meter Testing

This is a collection of password generators and strength meter testing. Each generator produces a different array of passwords, of which are then tested against each of the strength meters. The defaults are used where possible, otherwise sane options are provided.

The Results

The following results are tables showing the generators, passwords, and strength testers described below.

  1. Randomly generaterd passwords: atoponce/random_results_table.md
@javan
javan / application_controller.rb
Created November 30, 2013 22:06
Prevent cross-origin js requests
class ApplicationController < ActionController::Base
before_filter :ensure_xhr
private
def ensure_xhr
if request.get? && request.format && (request.format.js? || request.format.json?)
head :forbidden unless request.xhr?
end
end
end
@stephenhardy
stephenhardy / git-clearHistory
Created April 26, 2013 22:14
Steps to clear out the history of a git/github repository
-- Remove the history from
rm -rf .git
-- recreate the repos from the current content only
git init
git add .
git commit -m "Initial commit"
-- push to the github remote repos ensuring you overwrite history
git remote add origin git@github.com:<YOUR ACCOUNT>/<YOUR REPOS>.git