Automatic Semicolon Insertion

JavaScript will automatically insert semicolons (;) when a line break is encountered, but only under a specific set of circumstances. The concrete rules for ASI are described in the ECMAScript standard, and summarized below.

function test() {
    return
        'something'
}
console.log(test())

The return statement is transformed to return; 'something'; by ASI.

const foo = 'bar'
[1, 2, 3].forEach(console.log)

TODO

• chained function calls