LambdaFunctionsLambdaFunctions.LambdaFun

LambdaFunctions.pptx

1. Lambda functions

2. Lambda functions Similar to user defined functions , but without a name Called as Anonymous functions Efficient for simple expressions , ie for expressions with single line of statement. Useful when functions are used once.

3. Define lambda functions lamdba – keyword for defining anonymous functions argument(s) – variable to hold the value to be passed into the function, can have multiple values depending on the need. Expression – code to be executed in the lambda function. Anonymous function – does not have a return keyword , as it automatically returns the result of the expression, once executed. Donot use lambda functions for complex structures like if else , loops, define user defined functions for the complex structure.

4. Functions - example

5. Lambda function Invoke a lambda function immediately

6. Iterables Anything that consists of series of values like, characters, numbers etc. In python it is String, lists ,   ranges, tuples, and so on. Lambda is used with two other functions 1. filter 2. map 

7. Filter Focus on a specific value in an iterable .

8. Ex: