$schemamarkup = get_post_meta(get_the_ID(), 'schemamarkup', true); if(!empty($schemamarkup)) { echo $schemamarkup; }

How to Install Swift on RHEL-based Distros

GNU/Linux RHEL-based Swift Programming Get Started Guide

How to Install Swift Compiler and Getting Started with Swift Programming on RHEL-based GNU/Linux desktops – Step by step Tutorials.

And the Swift CentOS Release includes: Compiler, Lldb, and related Tools.

Moreover, Swift is a Programming Language for iOS, macOS, watchOS, and tvOS apps that builds on the best of C and Objective-C, without the constraints of C compatibility.

Then Swift‘s Clean Slate, Backed by the mature and much-loved Cocoa and Cocoa Touch Frameworks, is an opportunity to Reimagine how Software Development works.

How to Install Swift in CentOS GNU/Linux Distro

GNU/Linux RHEL-based Swift Compiler Installation Guide