javascript - Why is the split method still returning a string -

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I understand that the javascript's partition () method should take a string and pass it on to a parameter based on the parameters In the method should be divided into the array.

I have run the following in the console: 

  var sen = 'I like javascript'; Sen.split (''); Console.log (typeof (sen));   
 Then split ('') should split the string based on white space and return an array with 3 strings.  
 Although the console gives the typeface as "string" compared to the "object"  
 Does anyone know why?  
  
 
 
 Because split sen is not changed  
  sen Return value of 'split' ('');   
 There will be an array. Try:  
  var sen = 'I like javascript'; Var arr = sen.split (''); Console.log (typeof (arrivals));

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