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Tag: javascript

Programmatically cause onBlur to trigger in react

I use onBlur to close a dropdown, but I also want to handle a click handler of an li which is render within, setState won’t work here, the behavior is broken when user try to open the dropdown again, try it here: http://jsfiddle.net/ur1rbcrz My code: Answer Your code is not working because, even though …

Check if an array is descending, ascending or not sorted?

I’m just beginning with programming using javascript and I need to practice some questions to get EXP with the logic of code build. I got this question for homework but I can’t make it work for some reason, even though it seems “logic” to me. Check if an array is descending, ascending …

Pass this to addEventListener() as parameter

I want to add change event to a group of checkboxes, how can I access this in my event function, so that when I do the event I can access value of the checkbox. This is my current code: Answer Inside the forEach callback, this does not refer to a DOM element. It doesn’t refer to any useful value. Second…

How to set canvas origin to center in fabricjs?

When I draw a circle on fabricjs canvas it always appears on bottom right corner even though I set the coordinates to center. How can I make the circle draw center of the canvas? Answer You can set drawing origin of the circle object to center, using originX and originY property.

Vue.js image v-for bind

Any way to use v-for to get an array of images loaded? Have tried with the following code: Im pretty new to Vue, I still have a lot to learn. So any help will be greatly appreciated. Thanks Answer Use image object element, not images object array here in src and alt.