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Matrix Input
viewof values = matrix(columns,rows, defaults)
values
function form(form,rows,columns) {
const container = html`<div>${form}`;
form.addEventListener("change", () => container.dispatchEvent(new CustomEvent("input")));
form.addEventListener("input", () => container.value = formValue(form));
const matrixValue = formValue(form);;
container.value = matrixValue;
return container
}
function formValue(form) {
const object = {};
for (const input of form.elements) {
if (input.disabled || !input.hasAttribute("name")) continue;
let value = input.value;
switch (input.type) {
case "range":
case "number": {
value = input.valueAsNumber;
break;
}
case "date": {
value = input.valueAsDate;
break;
}
case "radio": {
if (!input.checked) continue;
break;
}
case "checkbox": {
if (input.checked) value = true;
else if (input.name in object) continue;
else value = false;
break;
}
case "file": {
value = input.multiple ? input.files : input.files[0];
break;
}
}
object[input.name] = value;
}
return object;
}
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