Toggle navigation Button Bug

[sunanan]

I just try your Bootstrap 3 demo
https://tagawa.github.io/bootstrap-without-jquery/bootstrap3/demo/

when I change the window size to small, I will the see the Toggle navigation Button. that's normal.
now, I hit the button many times quickly. the button will be frozen.

so if I refresh the page, and click the button slowly, one by one. the button is working fine.
I use your Js in my project. my daughter find the problem. you know, the kids always like click sound.

my system is windows 7 with chrome

[sunanan]

Got it. find the bug in doCollapse function.
before:

if (dataTarget.classList.contains('in')) {
hide(dataTarget, targets.evTarget);
} else {
show(dataTarget, targets.evTarget);
}

after

if (!dataTarget.classList.contains('collapsing')) {
if (dataTarget.classList.contains('in')) {
hide(dataTarget, targets.evTarget);
} else {
show(dataTarget, targets.evTarget);
}
}