quick-lint-js

Find bugs in JavaScript programs.

E0099: missing semicolon between init and condition parts of for loop

C-style for loops require two semicolons: one ; between the init and the condition, and one ; between the condition and the update expression. It is a syntax error to omit the ; between the init and the condition:

let i;
for (i = 0 i < 100; ++i) {
  console.log(i % 15 ? i : "FizzBuzz");
}

To fix this error, insert a semicolon (;) before the condition:

let i;
for (i = 0; i < 100; ++i) {
  console.log(i % 15 ? i : "FizzBuzz");
}

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