JSFiddle - React, Tailwind, and code Playground

JavaScript

<!--

MultiArray = new Array(60)

MultiArray [1] = new Array(9)
MultiArray [1][0] = "arx160"
MultiArray [1][1] = 89
MultiArray [1][2] = 27
MultiArray [1][3] = 61
MultiArray [1][4] = 81
MultiArray [1][5] = 92
MultiArray [1][6] = "arx160.png"
MultiArray [1][7] = 83
MultiArray [1][8] = 35

MultiArray [2] = new Array(9)
MultiArray [2][0] = "tar21"
MultiArray [2][1] = 89
MultiArray [2][2] = 27
MultiArray [2][3] = 61
MultiArray [2][4] = 81
MultiArray [2][5] = 92
MultiArray [2][6] = "tar21.png"
MultiArray [2][7] = 83
MultiArray [2][8] = 35

MultiArray [3] = new Array(9)
MultiArray [3][0] = "g36gl"
MultiArray [3][1] = 89
MultiArray [3][2] = 27
MultiArray [3][3] = 61
MultiArray [3][4] = 81
MultiArray [3][5] = 92
MultiArray [3][6] = "g36gl.png"
MultiArray [3][7] = 83
MultiArray [3][8] = 35

MultiArray [4] = new Array(9)
MultiArray [4][0] = "CZ 805 A2"
MultiArray [4][1] = 80
MultiArray [4][2] = 33
MultiArray [4][3] = 61
MultiArray [4][4] = 71
MultiArray [4][5] = 84
MultiArray [4][6] = "cz805a2.png"
MultiArray [4][7] = 83
MultiArray [4][8] = 35

function SortSubVal(a,b){
return (a[1][1]>b[1][1])?1:-1;
}


MultiArray.sort(SortSubVal);
console.log(MultiArray);

MultiArray [5] = new Array(9)



// valeur max tableau , ajouter une ligne en +
var array_max_val=5;
// 


function go()
{
var x;
var y;


x=document.George.wep1.options[document.George.wep1.selectedIndex].value;
y=document.George.wep2.options[document.George.wep2.selectedIndex].value;

var i=0;


for (i=1;i<=array_max_val;i++)
{
 
 if (MultiArray [i][0] == x )
     {
      t_weap1=MultiArray [i][0];
      t_dmg1=MultiArray [i][1];
      t_prt1=MultiArray [i][2];
      t_frt1=MultiArray [i][3];
      t_acc1=MultiArray [i][4];
      t_rec1=MultiArray [i][5];
      t_pic1=MultiArray [i][6];
      t_mag1=MultiArray [i][7];
      t_cap1=MultiArray [i][8];
     }
     
 if (MultiArray [i][0] == y )
     {
      t_weap2=MultiArray [i][0];
      t_dmg2=MultiArray [i][1];
      t_prt2=MultiArray [i][2];
      t_frt2=MultiArray...