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istesequi

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Lightweight and intuitive javascript library

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## .on() Calls a function when an event is triggered ```js .on('event1', callback) .on('event1 event2 eventN', callback) .on('event1,event2,eventN', callback) .on(['event1', 'event2', 'eventN'], callback) ``` ### Parameters `event1`, `event2`, `eventN`: the name(s) of the events to listen for actions, such as `click`, `submit`, `change`, etc. `callback`: function that will be called when the event is triggered. It accepts a single parameter, the event itself. ### Return Umbrella instance ### Examples An auto-save feature that submits the form through ajax every 10 seconds ```js // Show 'test' when the button test is clicked u('button.test').on('click', function(e) { alert("Test"); }); // This example is very similar to .ajax() implementation u('form.test').on('submit', function(e){ // Avoid submitting the form normally e.preventDefault(); // Submit the form through ajax ajax(u(this).attr('action'), u(this).serialize()); }); // Better 'onchange': u('input').on('change click blur paste', function(){ console.log("Maybe changed"); }); ``` ### Related [.trigger()](#trigger) calls an event on all of the matched nodes