The list of most commonly used jQuery API functions

jquery-api.md

Here is the list of most commonly used jQuery API functions:

• find(): Selects elements based on the provided selector string
• hide(): Hides an element if it was visible
• show(): Shows an element if it was hidden
• html(): Gets or sets an inner HTML of an element
• append() Injects an element into the DOM after the selected element
• prepend() Injects an element into the DOM before the selected element
• on(): Attaches an event listener to an element
• off() Detaches an event listener from an element
• css(): Gets or sets the style attribute value of an element
• attr() Gets or sets any attribute of an element
• val(): Gets or sets the value attribute of an element
• text(): Gets the combined text of an element and its children
• each(): Iterates over a set of matched elements

offset(), scrollTop() and resize() are good too especially when you want to make a position fixed element responsive when it is not set to top: 0 or left: 0

how come .toggle() not included!

Agreed about .css I find I use it all the time, especially if I have to inject some height dimensions into a child div. outerWidth and outerHeight are another couple functions I use all the time.

This is probably a list that's relevant to the author more than a statement of what's truly essential jquery. Your own personal list will no doubt be different.

append appends inside the selected element in the last position.
Ditto for prepend, only at the start. Useful list though :-).

Maybe you want to check out this:
tesodev/jqueryLite

// Gets or Sets the value of the attribute. e.x $("input[type='checkbox'].prop("checked"); It returns false or true. To set a value: $("input[type='checkbox'].prop("checked", false);
.prop()

Also,
is();

//It's similar to .prop(), but only get's the value, true or false of an attribute in an element. e.x $("input[type='checkbox'].is(":checked");
A semicolon must be inserted too.