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Getting Started
Download Expressif
Expressif language
The Expressif philosophy
Expressions
Values and types
References
Functions
Structured values
Predicates
Shorthands
Advanced expressions
Arrays in practice
Tuples in practice
Command-line interface
Installation
Evaluate an expression
Run expressions over input data
Validate expressions
Inspect parsing and binding
Automation and exit codes
Tooling
Expressif Language Server
TextMate grammar
Notepad++
Rouge
.NET SDK
Install Expressif
Evaluate an expression
Evaluate a predication
Build an expression with C#
Build a predication with C#
Serialize a builder
Functions library
Array functions
adjacent
Set functions
complement
difference
distinct
intersection
symmetric-difference
union
array
broadcast
cardinality
chunk
filter
first-elements
fold
lag
last-elements
lead
map
pairwise
reverse
scan
skip-first-elements
skip-last-elements
slice-elements
zip
zip-padded
zip-strict
Io functions
creation-datetime
creation-datetime-utc
directory
extension
filename
filename-without-extension
root
size
update-datetime
update-datetime-utc
Text functions
Casing functions
allcaps-case
camel-case
camel-snake-case
cobol-case
dot-case
flat-case
kebab-case
lower
namespace-case
pascal-case
pascal-snake-case
path-case
screaming-snake-case
sentence-case
snake-case
swap-case
title-case
train-case
upper
Character functions
remove-chars
replace-chars
Concatenation functions
append
append-new-line
append-space
prefix
prefix-new-line
prefix-space
prepend
prepend-new-line
prepend-space
replace-slice
suffix
suffix-new-line
suffix-space
text
Conversion functions
text-to-datetime
Counting functions
count-distinct-chars
count-substring
length
Encoding functions
html-to-text
text-to-html
Filtering functions
filter-chars
retain-alpha
retain-alpha-numeric
retain-numeric
retain-numeric-symbol
Masking functions
mask-to-text
text-to-mask
Normalization functions
clean-whitespace
collapse-whitespace
empty-to-null
null-to-empty
slug
trim
whitespaces-to-empty
whitespaces-to-null
without-diacritics
without-whitespaces
Padding functions
pad-center
pad-left
pad-right
Selection functions
after-substring
before-substring
first-chars
last-chars
skip-first-chars
skip-last-chars
Tokenization functions
token
token-count
Tuple functions
apply
arity
extend
pick
swap
tuple-at
tuple-first
tuple-second
Numeric functions
Arithmetic functions
absolute
add
cube-power
cube-root
decrement
divide
greatest-common-divisor
increment
invert
lowest-common-multiple
multiply
nth-root
oppose
percent-change
power
sign
square-power
square-root
subtract
Conversion functions
null-to-zero
Formatting functions
human-readable-format-binary-bytes
human-readable-format-decimal
human-readable-format-decimal-bytes
Rounding functions
ceiling
clip
floor
integer
round
Record functions
field
record
with
Special functions
any-to-any
coalesce
coerce-boolean
coerce-date
coerce-datetime
coerce-int
coerce-numeric
coerce-text
coerce-time
neutral
null-to-value
value-to-value
any-to-any
Temporal functions
age
Calendar functions
catholic-calendar
first-in-month
first-of-month
first-of-year
last-in-month
last-of-month
last-of-year
length-of-month
length-of-year
backward
Conversion functions
datetime-to-date
invalid-to-date
null-to-date
ceiling-hour
ceiling-minute
change-of-hour
change-of-minute
change-of-month
change-of-second
change-of-year
clamp
day-of-month
day-of-week
day-of-year
duration-between
floor-hour
floor-minute
forward
hour
hour-minute
hour-minute-second
hour-of-day
iso-day-of-year
iso-week-of-year
iso-year-day
iso-year-week
iso-year-week-day
local-to-utc
minute-of-day
minute-of-hour
month
month-day
month-of-year
next-business-days
next-day
next-month
next-weekday
next-weekday-or-same
next-year
previous-business-days
previous-day
previous-month
previous-weekday
previous-weekday-or-same
previous-year
second-of-day
second-of-hour
second-of-minute
set-time
set-to-local
set-to-utc
utc-to-local
year
year-of-era
Predicates library
Special predicates
is-null
Tuple predicates
has-arity
is-tuple
Boolean predicates
and
is-false
is-false-or-null
is-identical-to
is-true
is-true-or-null
not
or
xor
Text predicates
contains
ends-with
is-any-of
is-empty
is-empty-or-null
is-equivalent-to
is-lower-case
is-sorted-after
is-sorted-after-or-equivalent-to
is-sorted-before
is-sorted-before-or-equivalent-to
is-upper-case
matches-date
matches-datetime
matches-numeric
matches-regex
matches-time
starts-with
Numeric predicates
Arithmetic predicates
has-remainder
is-divisible-by
is-even
is-odd
is-equal-to
is-greater-than
is-greater-than-or-equal
is-integer
is-less-than
is-less-than-or-equal
is-negative
is-negative-or-zero
is-one
is-opposite
is-positive
is-positive-or-zero
is-within-interval
is-zero
is-zero-or-null
Temporal predicates
is-after
is-after-or-same-instant
is-before
is-before-or-same-instant
is-business-day
is-contained-in
is-in-the-future
is-in-the-future-or-now
is-in-the-future-or-today
is-in-the-past
is-in-the-past-or-now
is-in-the-past-or-today
is-leap-year
is-on-the-day
is-on-the-hour
is-on-the-minute
is-same-instant
is-today
is-tomorrow
is-weekday
is-weekend
is-within-current-month
is-within-current-week
is-within-current-year
is-within-last-month
is-within-last-week
is-within-last-year
is-within-next-days
is-within-previous-days
is-within-upcoming-month
is-within-upcoming-week
is-within-upcoming-year
is-yesterday
Accumulators library
Array accumulators
any
count
every
first
last
max
min
sum
Timeline
Brand colors
Thanks
Search Expressif
Home
Docs
Download
Timeline
Contact
Issue tracking
View on GitHub
Functions library
Reference documentation for all available Expressif functions.
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.NET SDK
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Predicates library
Table of contents
Array functions
Io functions
Text functions
Tuple functions
Numeric functions
Record functions
Special functions
Temporal functions