How to explain what is lambda

Question

i use lambda many time and i feel it is short cut for usage but how to explain or make some one understand what is lambda ? please discuss it with a example that what it is ?

Sundar · Answer

A lambda expression with an expression on the right side of the => operator is called an expression lambda . Expression lambdas are used extensively in the construction of Expresion Trees An expression lambda returns the result of the expression and takes the following basic form: (input-parameters) => expression The parentheses are optional only if the lambda has one input parameter; otherwise they are required. Two or more input parameters are separated by commas enclosed in parentheses: (x y) => x == y Expresion Trees Expression trees represent code in a tree-like data structure where each node is an expression for example a method call or a binary operation such as x .

Sundar · Answer

Lambda expressions are how anonymous functions are created. The left side of the lambda operator specifies the input parameters and the right side holds an expression or a code block that works with the entry parameters. Usually lambda expressions are used as predicates or instead of delegates (a type that references a method). Expression Lambdas Parameter => expression Parameter-list => expression Count => count + 2; Sum => sum + 2; n => n % 2 == 0 The lambda operator => divides a lambda expression into two parts. The left side is the input parameter and the right side is the lambda body.

tri_inn · Answer

can you plzz simplify the lambda definition because if i say all this to layman they may not be able to understand.