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The solution uses `count` in the local variable, but addition methods are written right into the `counter`. They share the same outer lexical environment and also can access the current `count`.
Løsningen bruger `count` i den lokale variabel, men tilføjede metoder er skrevet direkte ind i `counter`. De deler det samme ydre leksikale miljø og kan også tilgå den nuværende `count`.
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Modify the code of `makeCounter()` so that the counter can also decrease and set the number:
Juster på koden `makeCounter()` så tælleren også kan formindske tallet og sætte den til et bestemt tal:
- `counter()` should return the next number (as before).
- `counter.set(value)` should set the counter to `value`.
- `counter.decrease()` should decrease the counter by 1.
- `counter()` skal returnere det næste tal (as before).
- `counter.set(value)` skal sætte tælleren til `value`.
- `counter.decrease()` skal formindske tælleren med 1.
See the sandbox code for the complete usage example.
Se sandbox-koden for det fulde brugseksempel.
P.S. You can use either a closure or the function property to keep the current count. Or write both variants.
P.S. Du kan bruge enten en closure eller funktionsegenskab til at gemme den nuværende tæller. Eller skriv begge varianter.
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Translated assignments to function objects #251
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Translated assignments to function objects #251
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