Editing Constructor (object-oriented programming) (section)

=== JavaScript ===
As of ES6, [[JavaScript]] has direct constructors like many other programming languages. They are written as such

<syntaxhighlight lang="javascript">
class FooBar {
  constructor(baz) {
    this.baz = baz
  }
}
</syntaxhighlight>

This can be instantiated as such

<syntaxhighlight lang="javascript">
const foo = new FooBar('7')
</syntaxhighlight>

The equivalent of this before ES6, was creating a function that instantiates an object as such

<syntaxhighlight lang="javascript">
function FooBar (baz) {
  this.baz = baz;
}
</syntaxhighlight>

This is instantiated the same way as above.