Whats the difference between $ (this) and this? - Stack Overflow When you pass this to the jQuery constructor, you are passing the current element for a jQuery object to be constructed with The jQuery object then contains an array-like structure of the DOM elements matching the selector (or just the single element in the case of this) Once the jQuery object is constructed, the jQuery API is now exposed
jquery - Set select option selected, by value - Stack Overflow $("div id_100 > select > option[value=" + value + "]") prop("selected",true); Where value is the value you wish to select by If you need to removed any prior selected values, as would be the case if this is used multiple times you'd need to change it slightly so as to first remove the selected attribute
forms - jQuery . val () vs . attr (value) - Stack Overflow The output of jQuery code with attr ('value') will be 'undefined' because initially there was no file selected so the value is undefined It is better to use val () because it gets the current value
How can I get the ID of an element using jQuery? here is a code that is working: the jQuery will treat only the buttons that are of class cls-hlpb, it will take the id of the button that was clicked and will change it according to the data that comes from the ajax