The Safe Navigation Operator (&.) in Ruby

The Safe Navigation Operator in Ruby .& The most interesting addition to Ruby 2.3.0 is the Safe Navigation Operator(&.). A similar operator has been present in C# and Groovy for a long time with a slightly different syntax – ?.. So what does it do? Scenario Imagine you have an account that has an owner and you want to get … Continue reading "The Safe Navigation Operator (&.) in Ruby"

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Free Google Advertising Setup for your website or online store

Let’s try this soon https://www.cobiro.com Cobiro is the first fully automated and self-learning Google advertising optimizer Cobiro has used the latest technologies to remove the complexity of advertising with Google. Cobiro built for users and now sharing it for free. They call it autonomous advertising – we can call it our best investment for years!

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Understanding Storage Sizes for MySQL TEXT Data Types

Understanding Storage Sizes for MySQL TEXT Data Types TEXT data objects, as their namesake implies, are useful for storing long-form text strings in a MySQL database. The four TEXT data object types are built for storing and displaying substantial amounts of information as opposed to other data object types that are helpful with tasks like … Continue reading "Understanding Storage Sizes for MySQL TEXT Data Types"

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Create a bootable installer for macOS High Sierra

Create a bootable installer for macOS High Sierra You can use an external drive or secondary partition as a startup disk from which to install the Mac operating system. A bootable installer can be useful when you want to install macOS on multiple computers without downloading the installer each time. When your Mac starts up from a … Continue reading "Create a bootable installer for macOS High Sierra"

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Rails Request Environment Variables

Rails Request Environment Variables You are an internet savvy Starter. So, I hope you’re paying attention to your users somehow! Well, there’s gonna come a time when you’ll need to do some analytic gathering yourself. Rails environment variables can come in handy then. I’ve written quite a few Ruby on Rails tutorials so far. I … Continue reading "Rails Request Environment Variables"

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15 Practical PostgreSQL Database Administration Commands

15 Practical PostgreSQL Database Administration Commands 15 Practical PostgreSQL Database Administration Commands 1. How to change PostgreSQL root user password ? $ /usr/local/pgsql/bin/psql postgres postgres Password: (oldpassword) # ALTER USER postgres WITH PASSWORD 'tmppassword'; $ /usr/local/pgsql/bin/psql postgres postgres Password: (tmppassword) Changing the password for a normal postgres user is similar as changing the password of … Continue reading "15 Practical PostgreSQL Database Administration Commands"

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HP ENVY 4520 All-in-One Printer

HP ENVY 4520 All-in-One Printer If you want to have the simple home office solution like PRINT, SCAN, COPY, WEB and PHOTO try this HP ENVY 4520 All-in-One Printer For only $109 Do more with an affordable HP ENVY all-in-one—the perfect match for your modern technology. Fly through tasks with the easiest way to print from your smartphone or … Continue reading "HP ENVY 4520 All-in-One Printer"

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