I think you should not once again remind you of the obvious benefits of speed dialing and how this affects our productivity. For example, working on a complex compiled system, a number of small mistakes made can cost you valuable time.
Some of these problems can be avoided by using different IDEs that indicate the wrong variable name, unclosed parentheses, or a banal typo.
Another important aspect is the semantics of the language itself, which can be quite difficult to get used to. All the same brackets, quotes, the use of possible special characters. Improving speed dialing skills is only possible if you regularly write in this language. Over time, you will get used to the features of the syntax, master all sorts of techniques to increase the productivity of your development environment and begin to write code faster, stumbling over fewer errors.
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It was the practice of writing code in various languages that formed the basis of the typing.io project. The authors are trying to offer our usual concept of keyboard training for writing code in different languages. The service allows you to train the speed and correctness of the set, while the source code uses code fragments from known opensource applications. So you can practice yourself in the C set using code snippets from the linux 0.01 core or redis server, Python - Mercurial, Javascript - jQuery. For a full list of languages and lessons available for them, you can find
typing.io/lessons here.

Using
As you progress through the lessons, you will receive statistics on each stage completed, while on the course page you will be able to visually see the percentage of material covered.

Cost of
Currently, there are two tariff plans Mechanical ($ 5 / month) and Scissor Switch. The latter is planned to be free on a permanent basis. For $ 5 per month, not many additional options are offered on the Mechanical tariff plan, namely, a typo heatmap indicating buttons where you make the maximum number of errors. A typo cost analysis counts typos, including the number of characters typed after the error or the number of characters to be deleted.

Project site -
typing.ioTwitter -
twitter.com/typingio