Scheduling: setTimeout and setInterval by ockley · Pull Request #254 · javascript-tutorial/da.javascript.info · GitHub
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Original file line number Diff line number Diff line change
Expand Up @@ -2,11 +2,11 @@ importance: 5

---

# Output every second
# Output hvert sekund

Write a function `printNumbers(from, to)` that outputs a number every second, starting from `from` and ending with `to`.
Skriv en funktion `printNumbers(from, to)` som udskriver et tal hvert sekund, startende fra `from` og afslutning med `to`.

Make two variants of the solution.
Lav to varianter af løsningen.

1. Using `setInterval`.
2. Using nested `setTimeout`.
1. Brug `setInterval`.
2. Brug indlejret `setTimeout`.
Original file line number Diff line number Diff line change
@@ -1,14 +1,14 @@

Any `setTimeout` will run only after the current code has finished.
En `setTimeout` vil kun køre efter at det nuværende kode er færdig.

The `i` will be the last one: `100000000`.
Variablen `i` vil derfor have værdien `100000000`.

```js run
let i = 0;

setTimeout(() => alert(i), 100); // 100000000

// assume that the time to execute this function is >100ms
// Forestil dig at tiden for at køre dette er mere end 100ms
for(let j = 0; j < 100000000; j++) {
i++;
}
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