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SvelteJavaScriptcompiler Who is this for? Overview 1. Parsing source code into AST Where can I find the parser in the source code? Where can I learn about parsing in JavaScript? 2. Tracking references and dependencies a. Svelte creates a `Component` instance. b. Traverse the instance script and module script AST c. Traverse the template d. Traverse the instance script AST e. Update CSS selectors t
Series: Compile Svelte in your head SvelteJavaScript Background Introduction Creating an element Updating an element Removing an element Adding style to an element Listen for click events on an element Svelte syntax Compile Svelte in your Head create_fragment - c() - m(target, anchor) - d(detaching) export default class App extends SvelteComponent Adding data Updating data - p(ctx, dirty) instance
Series: AST JavaScriptAST Understand the grammar Implementing the parser Handling the unexpected input Unexpected token Unexpected end of string Going the extra mile Error code and standard error message A better view of what went wrong Suggestions for error recovery Summary The interview question of the week for this week on Cassidoo's weekly newsletter is, Write a function that takes in a string
Series: Intermediate Babel JavaScriptbabelASTtransform Overview Fork the babel Crash Course on Parsing Code to AST Our custom babel parser A new token: '@@' The new parser How parsing works this.eat, this.match, this.next Our babel plugin 1. Assume `currying` has been declared in the global scope. 2. Use the `@babel/helpers` Closing Note Editor's Note Further Reading Following my previous post on
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