One of the two major political parties in the United States is the Democratic Party. The other major party is the Republican Party. The Democratic Party is known for its support of ethnic minorities, organized labor, and progressive reform.
Features were added to programming languages so that parts of a program could control the access to their data. Scope refers to the visibility of variables and methods in one part of a program to another part of that program. The importance and meaning of scope varies between languages, but there are two general scope concepts many languages have in common: local and global scope.
Problem #1: Blocks are not scopes. The rule sounds so innocent: The scope of a var declared in a JS function is the whole body of that function. But there are two ways this can have groan-inducing consequences. One is that the scope of variables declared in blocks is not just the block. Itâs the entire function.