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10 changes: 5 additions & 5 deletions1-js/02-first-steps/04-variables/1-hello-variables/solution.md
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V níže uvedeném kódu každý řádek odpovídá jednomu bodu v zadání. | ||
```js run | ||
letsprávce, jméno; //můžeme deklarovat dvě proměnné najednou | ||
jméno = "Jan"; | ||
správce =jméno; | ||
alert(správce ); // "Jan" | ||
``` | ||
10 changes: 5 additions & 5 deletions1-js/02-first-steps/04-variables/1-hello-variables/task.md
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18 changes: 9 additions & 9 deletions1-js/02-first-steps/04-variables/2-declare-variables/solution.md
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##Proměnná pro naši planetu | ||
To je jednoduché: | ||
```js | ||
letjménoNašíPlanety = "Země"; | ||
``` | ||
Všimněte si, že bychom mohli použít kratší název `planeta`,ale pak by nemuselo být zřejmé, na kterou planetu se odkazuje. Je vhodné být výřečnější, aspoň dokud název proměnné neníPřílišDlouhý. | ||
##Jméno aktuálního návštěvníka | ||
```js | ||
letjménoAktuálníhoUživatele = "Jan"; | ||
``` | ||
Opět bychom to mohli zkrátit na `jménoUživatele`, pokud máme jistotu, že jde o aktuálního uživatele. | ||
V moderních editorech se dlouhé názvy proměnných snadno píší díky funkci automatického doplňování. Nešetřete na nich. Tříslovný název je zcela v pořádku. | ||
A pokud váš editorneumí automatické doplňování, pořiďte si [nový](/code-editors). |
6 changes: 3 additions & 3 deletions1-js/02-first-steps/04-variables/2-declare-variables/task.md
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6 changes: 3 additions & 3 deletions1-js/02-first-steps/04-variables/3-uppercast-constant/solution.md
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Obecně používáme velká písmena pro konstanty, které jsou „zakódovány natvrdo“. Jinými slovy, když je jejich hodnota známa ještě před spuštěním programu a je přímo uvedena v kódu. | ||
V tomto kódu je to přesně případ proměnné `datumNarození`. Pro ni bychom tedy mohli použít velká písmena. | ||
Naproti tomu `věk` se počítá až při běhu programu. Dnes máme jeden věk, za rok budeme mít jiný. Je to konstanta v tom smyslu, že se její hodnota nezmění při provádění kódu, ale je „trochu méně konstantní“ než `datumNarození`:její hodnota je vypočítávána, takže pro ni bychom měli nechat malá písmena. |
16 changes: 8 additions & 8 deletions1-js/02-first-steps/04-variables/3-uppercast-constant/task.md
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