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Merge pull request #11 from aiyodev/master
Variables
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1-js/02-first-steps/04-variables/1-hello-variables/solution.md

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In the code below, each line corresponds to the item in the task list.
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U kodu ispod, svaka linija odgovara predmetu u listi zadataka.
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```js run
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let admin, name; // can declare two variables at once
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let admin, name; // možete proglasiti dvije varijable odjednom
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name = "John";
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importance: 2
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važnost: 2
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---
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# Working with variables
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# Rad sa varijablama
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1. Declare two variables: `admin` and `name`.
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2. Assign the value `"John"` to `name`.
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3. Copy the value from `name` to `admin`.
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4. Show the value of `admin` using `alert` (must output "John").
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1. Proglasite dvije varijable: `admin` i `name`.
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2. Dodijelite vrijednost `"John"` varijabli `name`.
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3. Kopirajte vrijednost iz `name` u `admin`.
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4. Prikažite vrijednost `admin` koristeći `alert` (treba prikazati "John").
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## The variable for our planet
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## Varijabla za našu planetu
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That's simple:
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To je jednostavno:
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```js
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let ourPlanetName = "Earth";
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let imeNašePlanete = "Zemlja";
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```
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Note, we could use a shorter name `planet`, but it might be not obvious what planet it refers to. It's nice to be more verbose. At least until the variable isNotTooLong.
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Zapamtite, možemo koristiti kraće ime poput `planeta`, ali možda ne bi bilo očigledno na koju se planetu odnosi. Bolje je biti opširniji kada imenujemo varijable. Ali ne trebamo biti preopširni.
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## The name of the current visitor
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## Ime trenutnog posjetioca stranice
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```js
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let currentUserName = "John";
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let imeTrenutnogPosjetioca = "John";
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```
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Again, we could shorten that to `userName` if we know for sure that the user is current.
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Ponovo, možemo to skratiti na `imePosjetioca` ako znamo sigurno da je korisnik trenutan.
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Modern editors and autocomplete make long variable names easy to write. Don't save on them. A name with 3 words in it is fine.
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Moderni editori i automatsko popunjavanje omogućavaju nam da pišemo duža imena varijabli bez problema. Nemojte štediti na njima. Ime varijable sa 3 rijeci je dovoljno.
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And if your editor does not have proper autocompletion, get [a new one](/code-editors).
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Ako vaš editor nema pristojno automatsko popunjavanje, preuzmite [novi](/code-editors).
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importance: 3
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važnost: 3
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---
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# Giving the right name
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# Davanje pravog imena
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1. Create a variable with the name of our planet. How would you name such a variable?
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2. Create a variable to store the name of a current visitor to a website. How would you name that variable?
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1. Napravi varijablu sa imenom naše planete. Kako biste nazvali takvu varijablu?
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2. Napravi varijablu koja će spasiti ime trenutnog posjetioca naše web stranice. Kako biste nazvali tu varijablu?
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We generally use upper case for constants that are "hard-coded". Or, in other words, when the value is known prior to execution and directly written into the code.
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Mi obično koristimo velika slova za konstante koje su "tvrdo kodirane" (eng. hard-coded). Ili, u drugim riječima, kada je vrijednost poznata prije izvršavanja i direktno upisana u kod.
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In this code, `birthday` is exactly like that. So we could use the upper case for it.
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U ovom kodu, `ROĐENDAN` je tačno takav. Tako da za njega trebamo koristiti velika slova.
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In contrast, `age` is evaluated in run-time. Today we have one age, a year after we'll have another one. It is constant in a sense that it does not change through the code execution. But it is a bit "less of a constant" than `birthday`: it is calculated, so we should keep the lower case for it.
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U kontrastu `godine` su izračunate tokom izvršavanja koda. Danas imamo jednu vrijednost godina, sljedeću godinu imat ćemo drugačiju. Konstantna je u smislu da se ne mijenja tokom izvršavanja koda. Ali je malo "manje konstantna" od `rođendan`: izračunata je, tako da je trebamo pisati malim slovima.
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importance: 4
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važnost: 4
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# Uppercase const?
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# Pisanje const velikim slovima?
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Examine the following code:
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Proučite sljedeći kod:
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```js
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const birthday = '18.04.1982';
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const rođendan = '18.04.1982';
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const age = someCode(birthday);
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const godine = nekiKod(rođendan);
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```
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Here we have a constant `birthday` date and the `age` is calculated from `birthday` with the help of some code (it is not provided for shortness, and because details don't matter here).
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Ovdje imamo konstantu `rođendan` i `godine` koje su izračunate sa `rođendan` uz pomoć nekog koda (kod nije napisan radi kratkoće, i jer detalji ovdje nisu toliko bitni).
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Would it be right to use upper case for `birthday`? For `age`? Or even for both?
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Da li bi bilo ispravno da se koriste velika slova za `rođendan`? Za `godine`? Ili za oboje?
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```js
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const BIRTHDAY = '18.04.1982'; // make uppercase?
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const ROĐENDAN = '18.04.1982'; // napisati velikim?
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const AGE = someCode(BIRTHDAY); // make uppercase?
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const GODINE = nekiKod(ROĐENDAN); // napisati velikim?
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```
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