Data - toggle and data - the parent what do you use?-CodePudding

The following code in the

Retrieve the

Excuse me:
1, why want to use a button & lt; a>
2, the data - toggle="collapse" what's the meaning of data - what are the options available
toggle3, data - the parent is what mean?
CodePudding user response:
Data - is the element of the custom attributes
CodePudding user response:
This is a folding panel
CodePudding user response:
The
reference 1/f, trainee response:
data - is the element of the custom attribute

Thank you very much, can you tell me the data - toggle and data - what the parent definition in the BOOTSTRAP file,