nested if javascript

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Cristal
15 Apr 2020
1if(a == 'value'){
2    doSomething();
3    if(b == 'another value'){
4        doAnotherThing();
5    }
6}
source
María Alejandra
15 Nov 2016
1var word = ['rock', 'paper', 'scissors'];
2
3        var player1 = word[Math.floor(Math.random() * word.length)];
4        var player2 = word[Math.floor(Math.random() * word.length)];
5
6        var player1Image = document.querySelectorAll("img")[0].setAttribute("src", "images/" + player1 + ".png");
7        var player2Image = document.querySelectorAll("img")[1].setAttribute("src", "images/" + player2 + ".png");
8        
9        if(player1 === "rock"){ // rock
10            if(player2 === "scissors"){
11                player1Image;
12                player2Image;
13
14                console.log(player1 + " beats " + player2 + ", player1 wins");
15            } else if(player2 === "paper"){
16                player1Image;
17                player2Image;
18                console.log(player2 + " beats " + player1 + ", player2 wins");
19            } else {
20                player1Image;
21                player2Image;
22                console.log("Draw!!!")
23            }
24            
25        } else if(player1 === "scissors"){ // scissors
26            if(player2 === "rock"){
27                player1Image;
28                player2Image;
29                console.log(player2 + " beats " + player1 + ", player2 wins");
30            } else if(player2 === "paper"){
31                player1Image;
32                player2Image;
33                console.log(player1 + " beats " + player2 + ", player1 wins");
34            } else {
35                player1Image;
36                player2Image;
37                console.log("Draw!!!");
38            }
39
40           
41        } else { // paper 
42                if(player1 === "paper"){
43                    if(player2 === "rock"){
44                        player1Image;
45                        player2Image;
46                        console.log(player1 + " beats " + player2 + ", player1 wins");
47                    } else if(player2 === "scissors"){
48                        player1Image;
49                        player2Image;
50                        console.log(player2 + " beats " + player1 + ", player2 wins");
51                    } else {
52                        player1Image;
53                        player2Image;
54                        console.log("Draw!!!");
55                    }
56                }
57        }
Michaela
25 Mar 2017
1/_ return early when invalid conditions found _/
2
3function test(fruit, quantity) {
4  const redFruits = ['apple', 'strawberry', 'cherry', 'cranberries'];
5
6  if (!fruit) throw new Error('No fruit!'); // condition 1: throw error early
7  if (!redFruits.includes(fruit)) return; // condition 2: stop when fruit is not red
8
9  console.log('red');
10
11  // condition 3: must be big quantity
12  if (quantity > 10) {
13    console.log('big quantity');
14  }
15}
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