jQuery method to get the number of child elements

This example shows how jQuery gets the number of child elements. Share with you for your reference. The specific analysis is as follows:

// To obtain id=div1 The number of children under 
$('#div1').children().length;
// To obtain id=div1 Under the span Number of elements 
$('#div1').children('span').length;

I hope this article has been helpful to your jQuery programming.