Function last

test/fixtures/snapshot/typescript.js:1327–1330

(array)

    }
    ts.lastOrUndefined = lastOrUndefined;
    function last(array) {
        ts.Debug.assert(array.length !== 0);
        return array[array.length - 1];
    }
    ts.last = last;
    /**
     * Returns the only element of an array if it contains only one element, `undefined` otherwise.