jquery find class of child element code example
Example 1: jquery get child div
$(this).children('div').show();
Example 2: jquery find tag and class
$(".txtClass") => getElementsByClassName()
$("#childDiv2 .txtClass") => getElementById(),
then getElementsByClassName()
$("#childDiv2 > .txtClass") => getElementById(),
then iterate over children and check class
$("input.txtClass") => getElementsByTagName(),
then iterate over results and check class
$("#childDiv2 input.txtClass") => getElementById(),
then getElementsByTagName(),
then iterate over results and check class