Forbes magazine logo Ranked Best Coding Bootcamps 2023

Questions and Answers

About 153 questions

Blockchain Newsletter: Paying $15 to Send $25 Has Bitcoin Users Rethinking Practicality [2017W40]

This Week's Update on Bitcoin and Blockchain [2017W40] Issue: Week 40 of 2017 Markets Price per Bitcoin BTC is at ~$4300 USD (+14% from last Monday) P ...

Asked on 7 February 2018

Blockchain Newsletter: China orders Bitcoin exchanges in capital city to close [2017W39]

This Week's Update on Bitcoin and Blockchain [2017W39] Issue: Week 39 of 2017 Markets Price per Bitcoin BTC is at ~$3870 USD (-8% from last Monday) Pr ...

Asked on 7 February 2018

Blockchain Newsletter: Bitcoin Took a Major Dive then a Sharp Rebound [2017W38]

This Week's Update on Bitcoin and Blockchain [2017W38] Issue: Week 38 of 2017 Markets Price per Bitcoin BTC is at ~$3870 USD (-8% from last Monday) Pr ...

Asked on 7 February 2018

Blockchain Newsletter: China Is Said to Ban Bitcoin Exchanges [2017W37]

This Week's Update on Bitcoin and Blockchain [2017W37] Issue: Week 37 of 2017 Markets Price per Bitcoin BTC is at ~$4206 USD (-4.2% from last Monday) ...

Asked on 7 February 2018

Blockchain Newsletter: China Central Bank Says Initial Coin Offerings Are Illegal [2017W36]

This Week's Update on Bitcoin and Blockchain [2017W36] Issue: Week 36 of 2017 Markets Price per Bitcoin BTC is at ~$4393 USD (+3.7% from last Monday) ...

Asked on 7 February 2018

Blockchain Newsletter: Why Big Business Is Racing to Build Blockchains [2017W35]

This Week's Update on Bitcoin and Blockchain [2017W35] Issue: Week 35 of 2017 Markets Price per Bitcoin BTC is at ~$4241 USD (+6.2% from last Monday) ...

Asked on 7 February 2018

Blockchain Newsletter: Bitcoin Cash soars to record high above $900 as mining profits jump [2017W34]

This Week's Update on Bitcoin and Blockchain [2017W34] Issue: Week 34 of 2017 Markets Price per Bitcoin BTC is at ~$3991 USD (-4.6% from last Monday) ...

Asked on 7 February 2018

Blockchain Newsletter: Bitcoin Surpasses $4,000, Reaches Another Milestone [2017W33]

This Week's Update on Bitcoin and Blockchain [2017W33] Issue: Week 33 of 2017 Markets Price per Bitcoin BTC is at ~$4187 USD (+53% from last Monday) P ...

Asked on 7 February 2018

Blockchain Newsletter: Grandpa Had a Pension. This Generation Has Cryptocurrency [2017W32]

This Week's Update on Bitcoin and Blockchain [2017W32] Issue: Week 32 of 2017 Markets Price per Bitcoin BTC is at ~$3360 USD (+22.2% from last Monday) ...

Asked on 7 February 2018

Blockchain Newsletter: Bitcoin Split Is Nothing to Fear [2017W31]

This Week's Update on Bitcoin and Blockchain [2017W31] Issue: Week 31 of 2017 Markets Price per Bitcoin BTC is at ~$2749 USD (+38% from last Monday) P ...

Asked on 7 February 2018

Blockchain Newsletter: Rothschild Inv. Corp Invests in BTC [2017W30]

This Week's Update on Bitcoin and Blockchain [2017W30] Issue: Week 30 of 2017 Markets Price per Bitcoin BTC is at ~$2749 USD (+38% from last Monday) ...

Asked on 7 February 2018

Blockchain Newsletter: Bitcoin Is Having a Civil War Right as It Enters a Critical Month [2017W29]

This Week's Update on Bitcoin and Blockchain [2017W29] Issue: Week 29 of 2017 Markets Price per Bitcoin BTC is at ~$1985 USD (-21% from last Monday) ...

Asked on 7 February 2018

Blockchain Newsletter: Meet The Man Traveling The World On $25 Million Of Bitcoin Profits [2017W28]

This Week's Update on Bitcoin and Blockchain [2017W28] Issue: Week 28 of 2017 Markets Price per Bitcoin BTC is at ~$2523 USD (+1.32% from last Monday) ...

Asked on 7 February 2018

Blockchain Newsletter: Move Over, Bitcoin. Ether Is the Digital Currency of the Moment [2017W26]

This Week's Update on Bitcoin and Blockchain [2017W26] Issue: Week 26 of 2017 Markets Price per Bitcoin BTC is at ~$2508 USD (-2.1% from last Monday) ...

Asked on 7 February 2018

DAO Split Attack Explanation

This is a javascript implementation of the recent Dao attack. Modified with some explanation https://repl.it/C4I8/1 var baseBalance = 1000; var rewar ...

Asked on 7 February 2018

Convert String to BigDecimal

"5".to_d

Asked on 7 February 2018

Encoding URL parameter in Ruby

CGI::escape

Asked on 7 February 2018

Check if a value exists in an array in Ruby

You can use include? >> ['A', 'B', 'C'].include? 'B' => true

Asked on 7 February 2018

The checksum of /versions does not match the checksum provided by the server

Try running $ gem uninstall bundler If it doesn't let you, add --force at the end of the command. Then reinstall bundler $ gem install bundler$ bundl ...

Asked on 7 February 2018

Upload file to AWS S3 using fog in Ruby

http://fog.io/storage/

Asked on 7 February 2018

Learn web development online

Cohort 89 begins on May 6th, 2024

Most Popular

Most Popular7 Courses
Front-end
Back-end

Full-stack Web Development

Learn full-stack development with HTML, CSS, JavaScript, React, Ruby and Rails, Computer science fundamentals & programming skills.

VIEW DETAILS

Upgrade FSWD to include Python, Data Science, AI Application, TypeScript and more.
3 Courses
HTML
CSS
JavaScript

Front-end Web Development

Learn front-end development with HTML, CSS, JavaScript, and jQuery. Computer science fundamentals & programming skills.

VIEW DETAILS
2 Courses
Database
API
Testing

Back-end Web Development

Learn back-end development with Ruby and Rails, M-V-C. Computer science fundamentals with practical programming skills.

VIEW DETAILS

Trusted by

Students and instructors from world-class organizations

Imperial College London
Carnegie Mellon University
City University of Hong Kong
Hack Reactor
Cisco Meraki
University of Oxford
Swift
Bazaarvoice
Waterloo
Uber
AtlanTech
Tumblr
Boston College
Bombardier Aerospace
University of St. Andrews
New York University
Minerva Schools at KGI
Merrill Lynch
Riot Games
JP Morgan
Morgan Stanley
Advanced Placement®
Google
KPMG
The University of Hong Kong
University of Toronto
SCMP
Moat
Zynga
Hello Toby
Deloitte
Goldman Sachs
Yahoo
HSBC
General Assembly
Tesla
McGill University
Microsoft

Join the upcoming Cohort #89

Enroll for May 6th, 2024