How do you this in constructor?

392

---

When rendering a list what is a key and what is it's purpose?

375

---

What's the difference between super() and super(props) in React when using ES6 classes?

508

---

What is Children?

367

---

How is react different?

423

---

Why reactjs is used?

382

---

What are the features of react?

405

---

How reactjs framework is different as compared to others?

386

---

How is react different from angular?

434

---

Assuming both a local($var) and a my($var) exist, what's the difference between ${var} and ${"var"}?

1008

---

If EXPR is an arbitrary expression, what is the difference between $Foo::{EXPR} and *{"Foo::".EXPR}?

1027

---

Perl uses single or double quotes to surround a zero or more characters. Are the single(' ') or double quotes (" ") identical?

940

---

What does `$result = f() .. g()' really return?

1225

---

What does `new $cur->{LINK}' do? (Assume the current package has no new() function of its own.)

956

---

What happens to objects lost in "unreachable" memory, such as the object returned by Ob->new() in `{ my $ap; $ap = [ Ob->new(), $ap ]; }' ?

1000

---