What is a jQuery filter?

One or more DOM elements to match the current set of elements against. An existing jQuery object to match the current set of elements against. Given a jQuery object that represents a set of DOM elements, the .filter () method constructs a new jQuery object from a subset of the matching elements.

What is a filter method in JavaScript?

The filter () method creates a new array filled with elements that pass a test provided by a function. The filter () method does not execute the function for empty elements. The filter () method does not change the original array. Required. A function to run for each array element. Required. The value of the current element. Optional.

How to filter list items based on their contents in jQuery?

We can select the list items, then filter them based on their contents: This code will alter the first list item only, as it contains exactly one tag. Within the filter function, this refers to each DOM element in turn. The parameter passed to the function tells us the index of that DOM element within the set matched by the jQuery object.

What is array filter?

The array filter () was called upon. A value to use as this when executing callbackFn. See iterative methods. A shallow copy of a portion of the given array, filtered down to just the elements from the given array that pass the test implemented by the provided function. If no elements pass the test, an empty array will be returned.