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JavaScript Source Text, Lexical Grammar & Parsing — Quiz

Check your understanding of ECMAScript source text, lexical input, parsing goals, directive prologues, and automatic semicolon insertion.

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JavaScript Source Text, Lexical Grammar & Parsing — Quiz

Check your understanding of ECMAScript source text, lexical input, parsing goals, directive prologues, and automatic semicolon insertion.

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What is the starting material for ECMAScript parsing?

ECMAScript separates source-text recognition from syntactic parsing. Use the lexical/syntactic pipeline to identify the stage involved.
Which grammar recognizes input elements?

ECMAScript separates source-text recognition from syntactic parsing. Use the lexical/syntactic pipeline to identify the stage involved.
Which is not an ECMAScript token?

ECMAScript separates source-text recognition from syntactic parsing. Use the lexical/syntactic pipeline to identify the stage involved.
What generally happens to comments before syntactic parsing?

ECMAScript separates source-text recognition from syntactic parsing. Use the lexical/syntactic pipeline to identify the stage involved.
Why are Unicode identifier rules part of lexical grammar?

ECMAScript separates source-text recognition from syntactic parsing. Use the lexical/syntactic pipeline to identify the stage involved.
Why does ECMAScript have multiple lexical goals?

ECMAScript separates source-text recognition from syntactic parsing. Use the lexical/syntactic pipeline to identify the stage involved.
What are ECMAScript top-level parse goals?

ECMAScript separates source-text recognition from syntactic parsing. Use the lexical/syntactic pipeline to identify the stage involved.
What is conceptually produced by successful parsing?

ECMAScript separates source-text recognition from syntactic parsing. Use the lexical/syntactic pipeline to identify the stage involved.
Does ASI insert a semicolon after every newline?

ECMAScript separates source-text recognition from syntactic parsing. Use the lexical/syntactic pipeline to identify the stage involved.
What can a [no LineTerminator here] restriction do?

ECMAScript separates source-text recognition from syntactic parsing. Use the lexical/syntactic pipeline to identify the stage involved.
What is a directive prologue?

ECMAScript separates source-text recognition from syntactic parsing. Use the lexical/syntactic pipeline to identify the stage involved.
Where is "use strict" recognized?

ECMAScript separates source-text recognition from syntactic parsing. Use the lexical/syntactic pipeline to identify the stage involved.
Which line is especially vulnerable to ASI ambiguity after an expression?

ECMAScript separates source-text recognition from syntactic parsing. Use the lexical/syntactic pipeline to identify the stage involved.
What is a syntax error?

ECMAScript separates source-text recognition from syntactic parsing. Use the lexical/syntactic pipeline to identify the stage involved.
Which lesson owns module linking/evaluation details?

ECMAScript separates source-text recognition from syntactic parsing. Use the lexical/syntactic pipeline to identify the stage involved.
Which statement best describes lexical and syntactic grammar?

ECMAScript separates source-text recognition from syntactic parsing. Use the lexical/syntactic pipeline to identify the stage involved.

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JavaScript Source Text, Lexical Grammar & Parsing — Quiz

JavaScript Source Text, Lexical Grammar & Parsing — Quiz

What is the starting material for ECMAScript parsing?

Which grammar recognizes input elements?

Which is not an ECMAScript token?

What generally happens to comments before syntactic parsing?

Why are Unicode identifier rules part of lexical grammar?

Why does ECMAScript have multiple lexical goals?

What are ECMAScript top-level parse goals?

What is conceptually produced by successful parsing?

Does ASI insert a semicolon after every newline?

What can a [no LineTerminator here] restriction do?

What is a directive prologue?

Where is "use strict" recognized?

Which line is especially vulnerable to ASI ambiguity after an expression?

What is a syntax error?

Which lesson owns module linking/evaluation details?

Which statement best describes lexical and syntactic grammar?

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