jQuery text（），语法问题？

I have some strange comportement with my ajax request. The ajax request processes correctly, and the callback function removes a class 'invisible', that reveals a hidden div. In this div, I target an element with a "target" id. But quite strangely, when I want to add a text inside the div with an $("#target").text('hello'); most of my webpage disappears. A wrong syntax ? Any idea ?

Best, Newben

Try $("#target").html('hello');