Array

When u run that function which one can return a true value for an array  do that ?
 filter() or  splice() or sort()  or parseFloat()

Can you define what you mean by true value, or give an example of an array and what you want to return?

I'd like to know which functions of these 4 when i run a test it will return on every array a new array have a true value.

What do you mean by "True Value?"  Float value?  Int value?

What would you want returned from this:

var myArray = [24, '37.2', 'foo33', 'bar', 1, '-99'];

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array value a float??

Please provide an example of what you want.