disallow ternary operators (no-ternary)

The ternary operator is used to conditionally assign a value to a variable. Some believe that the use of ternary operators leads to unclear code.

var foo = isBar ? baz : qux;

Rule Details

This rule disallows ternary operators.

Examples of incorrect code for this rule:

/*eslint no-ternary: "error"*/

var foo = isBar ? baz : qux;

function quux() {
  return foo ? bar() : baz();
}

Examples of correct code for this rule:

/*eslint no-ternary: "error"*/

var foo;

if (isBar) {
    foo = baz;
} else {
    foo = qux;
}

function quux() {
    if (foo) {
        return bar();
    } else {
        return baz();
    }
}

Related Rules

• no-nested-ternary
• no-unneeded-ternary

Version

This rule was introduced in ESLint 0.0.9.

Resources

• Rule source
• Documentation source