Web-Related Terms Beginning with U
Uncontrolled Component (ReactJS)
An uncontrolled component is a component whose form's data React does not control exclusively.
Regular expression's Unicode flag (
u) tells the computer to search for Unicode RegExp patterns.
A unit is anything accepted as a gauge for expressing the quantity or size of another thing.
Unit Test (TDD)
A unit test is a test written to assess the functionality of an independent piece of program.
Unmounting Phase (ReactJS)
A component's unmounting phase is when the component's instance is being removed from the DOM.
unshift() adds its arguments to the beginning of its calling array and returns the calling array's new length.
Updating Phase (ReactJS)
A component's updating phase is the period when the component instance is being updated.
URL (Uniform Resource Locator)
A URL is a website's specific location on the web.