New posts in Variable Definitions

KeyExistsQ[] but for functions?

Create variables in a for loop

When is a symbol a Symbol? Is there an easy Mathematica way to test if an object is a symbol sort of like a SymbolQ?

Move definition from one context to Global`

Is it possible to use a previously defined value in subsequent definitions of a `Block`?

Is it possible to Clear (recover memory from) a specific index to a variable, while leaving other indices to the same variable untouched?

How can I make assignments persist across sessions?

Confusing behavior when passing a variable vs. inlining a function call

When to name a variable with $

ParallelSum vs. Sum: New functions also defined in other Kernels?