<ul><li>A coder created a tool to practice JavaScript using the first principle thinking approach.</li><li>The coder believes that understanding the reasoning behind code structure and execution is crucial for mastery.</li><li>The tool allows users to specify JavaScript concepts they want to practice and provides step-by-step instructions with an emphasis on the 'why' behind each step.</li><li>The tool can also generate PDF and TXT guidelines to aid users in following along as they build their projects.</li></ul>

Practice javascript via first principle thinking, not syntax memorization

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