1<form>
2    <input id="myInput" placeholder="Some text.." value="">
3    <input type="submit" id="myBtn" value="Submit">
4</form>
5
6<script>
7var input = document.getElementById("myInput");
8input.addEventListener("keyup", function(event) {
9    if (event.keyCode === 13) {
10        event.preventDefault();
11        document.getElementById("myBtn").click();
12    }
13});
14</script>
15

1$('.container').on('keydown', 'input', function(e) {
2  if (e.keyCode === 13) {
3    e.preventDefault();
4  	e.stopImmediatePropagation();
5    //Do your stuff...
6  }
7});

1cook
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