<form class="form-inline ng-pristine ng-valid" id="k_tip" >
<button class="btn btn-info" value="" onClick="result(1);">Hepsi</button>
<button class="btn btn-info" value="1" onClick="result(1,1);">Normal</button>
<button class="btn btn-info" value="2" onClick="result(1,2);">Bekleyen</button>
<input   type="hidden" value="" id="k_tip_1">
<input   type="hidden" value="1" id="k_tip_2">
<input   type="hidden" value="2" id="k_tip_3">
</form>

if(val=="1") {
    var input_degeri = $("#k_tip_"+val).val();
    alert(input_degeri);
}