In memory storage

Understanding the JavaScript Call Stack

1. What is a ‘call’?

   • The function invocation

2. How many ‘calls’ can happen at once?

   • Only one call

3. What does LIFO mean?

   • Last In First Out

4. Draw an example of a call stack and the functions that would need to be invoked to generate that call stack.

   • 

5. What causes a Stack Overflow?

   • A recursive function that calls itself.

JavaScript error messages

1. What is a ‘refrence error’?

   • The error for calling a variable that is not declared.

2. What is a ‘syntax error’?

   • Wrong syntax writing (like spelling mistakes and adding or removing a comma …etc)

3. What is a ‘range error’?

   • Giving an object an invalid length.

4. What is a ‘tyep error’?

   • Trying to process a data type with invalid process.

5. What is a breakpoint?

   • Used to pause JS code.

6. What does the word ‘debugger’ do in your code?

   • Show the history before reaching a break point