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Usage examples and precautions when the selector contains spaces_jquery
Usage examples and precautions when the selector contains spaces_jquery
var $t_a=$(".test :hidden") //The space indicates that the class is selected as the hidden element in test;
var $t_a =$(".test:hidden")//Without spaces, it means selecting hidden elements with class test;
Example:
< ;div class="test" style="display:none;">
The output results are: 2 and 3 respectively;
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