I have two checkboxes, each handling a vertical and horizontal state respectively. It is ok if both are off, but if one is on the other must be off and most importantly both can not be on.
I do not want to jQuery here.
If I both are unchecked and I hit the horizontal one and then the vertical, they will toggle, as the horizontal goes unchecked and the vertical will become checked.
But if I do it the other way starting with the vertical, I can't check the horizontal.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Toggle</title>
</head>
<style>
.constraint {
color: #007bff;
padding: 0rem .5rem;
}
span.horz:before {
content: "\2194";
}
span.vert:before {
content: "\2195";
}
</style>
<body>
<span class="constraint">Constraint: </span>
<span class="constraint vert">
<input type="checkbox" id="vertical" onchange="constraints()">
<span class="constraint horz"></span>
<input type="checkbox" id="horizontal" onchange="constraints()">
</body>
<script type="text/javascript">
function constraints() {
inputVert = document.getElementById("vertical");
inputHorz = document.getElementById("horizontal");
console.log("initially: vert:" + inputVert.checked);
console.log("initially: horz:" + inputHorz.checked);
if (inputVert.checked) {
console.log("vert clicked -> vert:" + inputVert.checked);
console.log("vert clicked -> horz:" + inputHorz.checked);
// inputHorz = document.getElementById("horizontal");
inputHorz.checked = false;
// inputVert.checked = true;
};
if (inputHorz.checked) {
console.log("horz clicked -> vert:" + inputVert.checked);
console.log("horz clicked -> horz:" + inputHorz.checked);
// inputVert = document.getElementById("vertical");
inputVert.checked = false;
// inputHorz.checked = true;
};
}
</script>
</html>
Any help greatly appreciated,
Thanks
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