The text() method method sets or returns the text content (innerText) of the selected element:
The html() method returns or sets the content (innerHTML) of the selected element, including tags:
1234
$("#data").text(); //Return 1234, the tags in data will be ignored, only the content will be returned, similar to innerText in js
$("#data").text("Hello"); // img and p inside data will be deleted, and the content will be replaced with "hello"
$("#data").html(); //return string "
1234
"$("#data").html("Hello"); //The img and p inside the data will be deleted, and the content will be replaced with "Hello"
The val() method returns or sets the value of the selected element
$("input").val(); //Return the value of the input "1133445fddsgfsgfadfa"
$("input").val() = "Send it, so annoying"; //Set the value of the value