Get the Text Length using Power Query M. If we want to use the Excel LEN function to get the length of strings, it is not supported in M. Let us see how to use the LEN Function in M to get the length of strings.
Get Text Length Using ‘M’ Power Query
Step 1: Select the Name Column
First, load the data table in Power Query and select the Name column as shown in the below picture. Here, our aim is to get the length of the string from the Name column.
POWER BI FOR DUMMIES
Step 2: Add Custom Column
Add a Custom Column to write a query in M language for getting the length of the string from Name Column. To use a Custom Column feature, go to-
Add Column > Custom Column
Step 3: Get the Length of String using M Language
To get the length of string we have to create a simple M expression.
In the New column name text box, we have written Name (Len).
Now, you can write the M query as given below:
Text. Length formula is used to get the length of the Name column
Click OK to apply.
Step 4: Close & Apply
Close & Apply the Power Query changes after you get the new column added showing the length of string for Name column as given in below picture.
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