quick-lint-js

Find bugs in JavaScript programs.

E0040: unclosed string literal

String literals start with " or ' and end with " or ', respectively. It is a syntax error to omit the trailing " or ' from a string literal. A missing terminator can happen for a number of reasons:

// The final " is escaped by \.
let temp = "c:\temp\";

// String literals cannot span multiple lines.
// Poem by Ian Johnson.
let poem = "My code fails. I do not know why.
My code works. I do not know why.";

let unfinishedThought = "The solution is

To fix this error, ensure a backslash (\) is not escaping the terminator, use a template literal for multi-line strings, or just include a terminator:

let temp = "c:\\temp\\";

// Poem by Ian Johnson.
let poem = `My code fails. I do not know why.
My code works. I do not know why.`;

let unfinishedThought = "The solution is";

Documentation for other errors