github.com/godaddy-x/freego@v1.0.156/goquery/iteration.go (about)

     1  package goquery
     2  
     3  // Each iterates over a Selection object, executing a function for each
     4  // matched element. It returns the current Selection object. The function
     5  // f is called for each element in the selection with the index of the
     6  // element in that selection starting at 0, and a *Selection that contains
     7  // only that element.
     8  func (s *Selection) Each(f func(int, *Selection)) *Selection {
     9  	for i, n := range s.Nodes {
    10  		f(i, newSingleSelection(n, s.document))
    11  	}
    12  	return s
    13  }
    14  
    15  // EachWithBreak iterates over a Selection object, executing a function for each
    16  // matched element. It is identical to Each except that it is possible to break
    17  // out of the loop by returning false in the callback function. It returns the
    18  // current Selection object.
    19  func (s *Selection) EachWithBreak(f func(int, *Selection) bool) *Selection {
    20  	for i, n := range s.Nodes {
    21  		if !f(i, newSingleSelection(n, s.document)) {
    22  			return s
    23  		}
    24  	}
    25  	return s
    26  }
    27  
    28  // Map passes each element in the current matched set through a function,
    29  // producing a slice of string holding the returned values. The function
    30  // f is called for each element in the selection with the index of the
    31  // element in that selection starting at 0, and a *Selection that contains
    32  // only that element.
    33  func (s *Selection) Map(f func(int, *Selection) string) (result []string) {
    34  	for i, n := range s.Nodes {
    35  		result = append(result, f(i, newSingleSelection(n, s.document)))
    36  	}
    37  
    38  	return result
    39  }