Mahfuzur Rahman3,162 Points
.text(title) but .html(content)
why are we using $('#blogContentPreview').html(content) instead of $('#blogContentPreview').text(content)
Steven Parker97,859 Points
The "html" method allows the content to contain markup tags (such as the "<strong>" shown in the example), but the "text" method does not. If you were loading the content with "text", then the "<strong>" tag would show as-is instead of causing the area it encloses to be emphasized.
If you wanted to allow markup to be used in the title, you could substitute the "html" method there also.
A little experimentation might be worth more than any explanation!