CODEWITHSUNDEEP
node.jscoffeescriptexpresscoffeekup
joque
joque

Reputation: 813

dynamic binding in CoffeeKup

I am writing an app with node.js and coffee-script and coffeekup as template engine. I have a form where I'd like to enable or disable a button depending on whether there are values in some input fields. I am wondering whether there is a straightforward mechanism like in Sproutcore or Ember, where just a binding will do. How should I go about it?

Upvotes: 0

Views: 328

Answers (1)

Linus Thiel
Linus Thiel

Reputation: 39251

No, there is no such binding out of the box. You have to either implement something like Ember, Knockout or Serenade.js, or roll it yourself. If it's just this one form, I would just have a small script (jQuery below):

function validateForm() {
  // Check if form fields are valid, return true if valid, false if not.
}

// Update the disabled attribute on a button inside "formId" anytime an input field is changed.
$("#formId").on("change", "input", function(event) {
  $("#formId button").attr("disabled", !validateForm());
});

Upvotes: 1

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