Index of Handlebars Functions

We organized the functions in this reference guide into categories based on the types of data that each function interacts with. For example, you can find information about Handlebars functions that manipulate dates and times in the Date & Time Functions category.

This table lists all of the existing Handlebars functions on a single page in alphabetical order. The purpose of this index is to make it easier to explore and discover Handlebars functions that you might not have encountered otherwise.

Function Name	Description	Category
Add	Returns the sum of two numbers.	Math
And	Returns true if both operands are true.	Comparison
Char	Returns a character when passed an ASCII character code.	String
Compare	Compares two values using a specified operator.	Comparison
Concat	Concatenates strings of text.	String
Divide	Returns the result of dividing the first parameter by the second parameter.	Math
Each	Loops through a list of items and renders a block of template code for each item.	Objects
Equals	Compares two values for equality.	Comparison
Fallback	Returns a fallback value if the first argument is null, empty, or if an exception occurs.	Utility
Filter	Returns a list of items that match a condition.	Objects
Flatten	Flattens a nested list into a single list.	Objects
Format	Formats output based on a format string and optional type specification.	Utility
FormatCurrency	Formats a number as a currency value.	Utility
FormatNumber	Formats a number as a numeric type.	Utility
Get	Returns the value of a property from an object.	Objects
If	Conditionally renders a block based on whether a value evaluates to true.	Comparison
IIf	Evaluates an expression and returns one of two values based on whether the expression is true or false.	Comparison
IndexOf	Returns the position at which a substring occurs within a string.	String
IsEmpty	Checks if a specified parameter evaluates to null or empty.	Comparison
IsNull	Checks if the given expression is null.	Comparison
Length	Returns the length of a string or the number of elements in an array.	Utility
Lowercase	Returns the provided string using only lowercase letters.	String
Map	Extracts a specific field from each object in a list.	Objects
Modulo	Returns the remainder after dividing the first parameter by the second parameter.	Math
Multiply	Returns the product of two numbers.	Math
Not	Returns true if the operand is false.	Comparison
Now	Returns the current system timestamp.	Date & Time
Or	Returns true if at least one operand is true.	Comparison
PersonalizationResult	Retrieves personalized content or data based on subscriber information and campaign context.	Personalization
ProperCase	Returns specified string with the first letter of each word capitalized.	String
Random	Returns a random number within a specified range.	Math
Repeat	Repeats a block of template code a specified number of times, providing loop context variables for each iteration.	Utility
Replace	Replaces every occurrence of one substring with a different substring.	String
Set	Performs local variable assignment within its block scope.	Utility
Slice	Returns a portion of a list between two specified indices.	Objects
Sort	Sorts a list of objects by a specified field.	Utility
Substring	Returns a portion of a string, beginning at a specified character position.	String
Subtract	Returns the result of subtracting the second parameter from the first parameter.	Math
Trim	Removes white space from the beginning and end of a string.	String
Unless	Conditionally renders a block based on whether a value evaluates to false.	Comparison
Uppercase	Returns the provided string using only uppercase letters.	String
With	Changes the context within a block to a specified object so that you can access properties without repeating the object name.	Utility