30 lines
No EOL
892 B
Markdown
30 lines
No EOL
892 B
Markdown
---
|
|
tags:
|
|
- Software_Engineering
|
|
- call_stack
|
|
---
|
|
|
|
# The call-stack
|
|
|
|
A [stack](/Data_Structures/Stacks.md) data structure that holds the information of the functions called within a program that allows transfer of the application control from these functions to the main process after code inside the functions has been executed.
|
|
|
|
## Example
|
|
|
|
```js
|
|
function greet(who){
|
|
console.log("Hello " + who);
|
|
}
|
|
|
|
greet("Harry");
|
|
|
|
console.log("Bye");
|
|
```
|
|
### Breakdown
|
|
1. Interpreter receives call to `greet()`
|
|
2. Goes to the definition of this function (`function greet(who)...`)
|
|
3. Executes the `console.log` within this function
|
|
4. Returns to the location that called it (`greet("Harry")`)
|
|
5. Finds that there is nothing else to do in this function so moves to next function: the `console.log("bye")`
|
|
6. Executes
|
|
7. Returns to line that called it. Finds nothing else to do. Exits program.
|
|
|