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You're reading from  The Definitive Guide to Power Query (M)

Product typeBook
Published inMar 2024
Reading LevelBeginner
PublisherPackt
ISBN-139781835089729
Edition1st Edition
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Authors (3):
Gregory Deckler
Gregory Deckler
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Gregory Deckler

Greg Deckler is a 7-time Microsoft MVP for Data Platform and an active blogger and Power BI community member, having written over 6,000 solutions to community questions. Greg has authored many books on Power BI, including Learn Power BI 1st and 2nd Editions, DAX Cookbook, Power BI Cookbook 2nd Edition and Mastering Power BI 2nd Edition. Greg has also created several external tools for Power BI and regularly posts video content to his YouTube channels, Microsoft Hates Greg and DAX For Humans.
Read more about Gregory Deckler

Rick de Groot
Rick de Groot
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Rick de Groot

Rick de Groot was born in the Netherlands and has been working in BI for more than 14 years. He went freelance in 2016 and now works as an independent Power BI consultant. On his mission to make Power BI more accessible, he started two blogs: BI Gorilla and PowerQuery. how, and a YouTube channel sharing Power Query and Power BI content. His commitment to offering free content through multiple platforms has led him to earning the Microsoft Data Platform MVP award for two consecutive years.
Read more about Rick de Groot

Melissa de Korte
Melissa de Korte
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Melissa de Korte

Melissa de Korte's approach to facing challenges is fueled by relentless curiosity. She is a dedicated community member and content creator. Her portfolio includes blogs, tutorials, courses, and webinars, that make Power Query M more accessible and useful for all. Behind her professional persona lies a genuine dedication to empowering others through education and knowledge sharing, and a desire to encourage professionals to embrace the potential of Power Query, M.
Read more about Melissa de Korte

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Working with lists

Considering the numerous functions designed to work with lists, their significance is evident. You can think of lists containing primitive values as similar to one-dimensional arrays: a flexible structure that allows for the easy storage and manipulation of data, including adding, removing, and modifying items. This section focuses solely on working with lists; lists that contain other value types, like records or tables, are covered later on in this chapter.

Transforming a list

Every element within a list can be referred to by its positional index – a number that reflects its zero-based position within a list. The first element has a positional index of 0, followed by the second element with an index of 1, and so on. A method called item access provides access to each list element by using this zero-based index position within a set of curly brackets, { }.

List.Transform

List.Transform provides a wealth of possibilities. Much like the name...

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The Definitive Guide to Power Query (M)
Published in: Mar 2024Publisher: PacktISBN-13: 9781835089729

Authors (3)

author image
Gregory Deckler

Greg Deckler is a 7-time Microsoft MVP for Data Platform and an active blogger and Power BI community member, having written over 6,000 solutions to community questions. Greg has authored many books on Power BI, including Learn Power BI 1st and 2nd Editions, DAX Cookbook, Power BI Cookbook 2nd Edition and Mastering Power BI 2nd Edition. Greg has also created several external tools for Power BI and regularly posts video content to his YouTube channels, Microsoft Hates Greg and DAX For Humans.
Read more about Gregory Deckler

author image
Rick de Groot

Rick de Groot was born in the Netherlands and has been working in BI for more than 14 years. He went freelance in 2016 and now works as an independent Power BI consultant. On his mission to make Power BI more accessible, he started two blogs: BI Gorilla and PowerQuery. how, and a YouTube channel sharing Power Query and Power BI content. His commitment to offering free content through multiple platforms has led him to earning the Microsoft Data Platform MVP award for two consecutive years.
Read more about Rick de Groot

author image
Melissa de Korte

Melissa de Korte's approach to facing challenges is fueled by relentless curiosity. She is a dedicated community member and content creator. Her portfolio includes blogs, tutorials, courses, and webinars, that make Power Query M more accessible and useful for all. Behind her professional persona lies a genuine dedication to empowering others through education and knowledge sharing, and a desire to encourage professionals to embrace the potential of Power Query, M.
Read more about Melissa de Korte