Topic: Why in js .concat([...this.options. ?

adstrategy pro asked 5 years ago


Hello,

I came across an MDBootstrap error on Internet Explorer on the file mdb.min.js. This file contains the following code:

var fas = $nativeSelectChild.data('fas') ? " ") : ''; var far = $nativeSelectChild.data('far') ? " ") : ''; var fab = $nativeSelectChild.data('fab') ? " ") : '';

Why do you use .concat([...this.options ?

Correcting as follows .concat([this.options this works on IE 11.

Thank you,

Regards,


Mikołaj Smoleński staff answered 5 years ago


Hi there,

We use it, because there's a possibility that this.options could be an array. This syntax is called spread operator and is very helpful in such situations.

Best regards



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Status

Answered

Specification of the issue

  • ForumUser: Pro
  • Premium support: No
  • Technology: MDB jQuery
  • MDB Version: 4.8.4
  • Device: Desktop
  • Browser: Internet Explorer 11
  • OS: Windows 10
  • Provided sample code: No
  • Provided link: No