Power Automate: first Function
Returns the initial element of an array or the first character of a string.
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Function Day
Function Day is where I explore the basics of a function and share recommendations on how to actually use it. I focus on Power Automate, SharePoint, and Power Apps, because there is so much to dig into there, though other references show up from time to time. Do not expect an exhaustive list of every function, since Microsoft's own reference already covers that. Instead I pick the common ones and build from there, one function at a time. Articles land on a regular schedule, and with three platforms to rotate through you can count on Power Automate, SharePoint, and Power Apps entries coming around in turn. When time allows I speed things up, but a steady rhythm is what keeps Function Day delivering useful, in-depth breakdowns you can rely on.
SharePoint: RoundDown Function
Rounds a number down. Negative values round toward zero.
Power Automate: lastIndexOf Function
Returns the position of the last occurrence of text in a string. -1 if not found.
SharePoint: Lower Function
Converts a string to lowercase.
Power Automate: item Function
Accesses each element inside repeating actions like Apply to Each.
SharePoint: AVERAGE function
Returns the arithmetic mean of number columns. Up to 30 parameters.
Power Automate: trim function
Removes leading and trailing spaces. Inner spaces stay intact.
Power Apps: ISOWeekNum function
Returns the ISO week number for a date. Monday is the first day; week 1 contains the first Thursday.
Power Automate: createArray Function
Builds an array from mixed types: strings, booleans, integers, and nested arrays.
Power Automate: concat Function
Combines strings, booleans, integers, and arrays into a single string.
Power Automate: array Function
Wraps a single value into an array. Accepts strings, booleans, integers, and floats.
SharePoint: Hour Function
Returns the hour component (0-23) of a date or time value.