- Is the language supported on the platform I will work on?
- Is the lauguage good for the nature of my project? For large scale system, a strong typed language is highly desirable. For multi-thread system, concurrency control is a must.
- How hard is the lanugage to learn? Is it close to any language I am already familiar with?
- How is the library support? Is it complete enough for my project?
- Do I need any framework? How deep is the learning curve?
- How active is the development community behind the languages/APIs/frameworks?
- Any similar systems that have been implemented in the language?
while you decide which language for next project, you should care about
