Currently, we are utilizing the public API to analyze TypeScript files in this manner:
ts.createSourceFile(
file.name,
file.textContent,
languageVersion,
/*setParentNodes*/ true);
Something that has caught our attention is the significance of the languageVersion. Why is it essential for the parsing process to be aware of the target languageVersion (es3/es5/es2015/esnext) being used?
Your input on this matter would be greatly valued. Thank you.
Each iteration of ECMAScript comes with its own unique grammar. The function createSourceFile is responsible for parsing code and determining whether certain parser errors should be generated based on this information.
To delve deeper into the varying parsing rules across different versions of JavaScript, check out resources like Unique Resource Title.
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