Added some style logic

script/game-functions/checkInputs.js

@@ -0,0 +1,47 @@
+export default function checkInputs() {
+
+    const player1 = document.getElementsByClassName('player player-1')[0]
+    const player2 = document.getElementsByClassName('player player-2')[0]
+
+    const inputsPlayer1 = [player1.children[0], player1.children[1].children[1]]
+    const inputsPlayer2 = [player2.children[0], player2.children[1].children[0]]
+
+    const inputsEmptys = []
+
+    inputsPlayer1.forEach(input => {
+
+        if (input.value === '') {
+
+            inputsEmptys.push(' ' + input.className + ' (player 1)')
+        }
+    })
+
+    inputsPlayer2.forEach(input => {
+
+        if (input.value === '') {
+
+            inputsEmptys.push(' ' + input.className + ' (player 2)')
+        }
+    })
+
+    if (inputsEmptys.length) {
+
+        alert('Please fill the inputs: ' + inputsEmptys)
+
+        return true
+    }
+
+    if (inputsPlayer1[0].value === inputsPlayer2[0].value) {
+
+        alert('Same usernames')
+
+        return true
+    }
+
+    if (inputsPlayer1[1].value === inputsPlayer2[1].value) {
+
+        alert('Same symbol')
+
+        return true
+    }
+}