Could someone tell me what going wrong with this code?

2. $("#P_Profil").on("change", "#Inp_Taille", function ()
3. {
4.     G_Taille = parseInt($("#Inp_Taille").val());
5.     var regT = new RegExp("^[1-2]{1}(\d){0,2}$|^[1-2]{1}[,.](\d){2}$");
6.     var ResultTestT = regT.test(G_Taille);
7.     if (ResultTestT)
8.     {
9.         console.log("On y passe");
10.         flgT = true;
11.         CalculIMC();
12.         CalculPoidsIdeal();
13.         $("#Inp_Taille").css("background-color", "rgba(255, 255, 255, 0.0)");
14.     } else
15.     {
16.         flgT = false;
17.         console.log("#Inp_Taille " + G_Taille);
18.         console.log("On y passe pas");
19.         $("#Inp_Taille").css("background-color", "#8a5757");
20.     }
21. });

I'm sure my regEx is correct. It should accept a size expressed in centimeter or meter ex: 1,95 or 1.95 or 195 but the result of  test() remains always 'false' . ???

Thanks in advance

ex =>  fiddle

RegEx tested ==>  regextester