A block
on a webpage is an HTML element that appears on a new line, i.e. underneath the preceding element in a horizontal writing mode, and above the following element (commonly known as a block-level element
). For example, p
is by default a block-level element, whereas a
is an inline element
— you can put several links next to one another in your HTML source and they will sit on the same line as one another in the rendered output.
In JavaScript, a block is a collection of related statement enclosed in braces ("{}"). For example, you can put a block of statements after an Statements/if...else
block, indicating that the interpreter should run the code inside the block if the condition is true, or skip the whole block if the condition is false.