javascript - Remove text from a p tag and add a class with jquery -

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what i'm triying accomplish there's p tag word "border" on it remove text inside (the word border) , add class p. far works finding p , adding class. how can remove text?

$('#main-body-content').find('p').filter(':contains(border)').addclass("border");

try this...... 

$('#main-body-content').find('p').filter(':contains(border)').text("").addclass("border");

demo


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