JSFiddle - React, Tailwind, and code Playground

HTML

<input id="Ajout" type="button" onclick="$();" value="Test!" />

<input id="Info" type="button" onclick="$();" value="Info !" />

<div id="mesDiv"></div>

CSS

.maClass {
  
 background:red; 
  
}

JavaScript

$("#Ajout").on("click", function () {

$("#mesDiv").empty();

for (i = 1; i<2; i++) {
    
  $('#mesDiv').append('<tr NoTR="" IdTR=""><td class="maClass" id="monId'+i+'" value="2747">llllllllllll</td></tr>');  

};
});


$("#Info").on("click", function () {

//alert($('#monId1').val());
alert($('#monId1').attr("value"));
});