E0139: missing condition for while statement
A while
statement has a condition which determines whether the body will
execute or not. It is an error to omit a while
statement's condition:
let name = '';
while {
name = prompt('What is your name?');
}
async function downloadURLWithRetries(url) {
while {
try {
return await downloadURL(url);
} catch {
// Loop and try again.
}
}
}
To fix this error, write the condition with parentheses after the if
keyword:
let name = '';
while (name === '') {
name = prompt('What is your name?');
}
Alternatively, to write an infinite loop, write for (;;)
instead of while
:
async function downloadURLWithRetries(url) {
for (;;) {
try {
return await downloadURL(url);
} catch {
// Loop and try again.
}
}
}
Introduced in quick-lint-js version 0.2.0.