format
Creates a string containing object values using a template.
Syntax

format(s, x)

s
is a string 
x
is a list

Description
The format
function creates a string containing object values using a template string with placeholders.
The result will equal s
except that every occurrence of the substring "%1"
will be replaced by x[1]
, every occurrence of "%2"
by x[2]
. Valid placeholders are %1
to %9
, but each placeholder can occur any number of times in s
. If a given placeholder %k
occurs (k = 1..9) in s
, then x[k]
must exist; otherwise an error is raised. On the other hand, it is not necessary that every element of x
is referenced in s
.
To put an actual percent sign in the result, write %%
in s
. In s
, any percent sign must be followed by a positive digit or another percent sign, except for these second percent signs in %%
.
Examples
n ≔ 1000; MessageBox(format("There are %2 primes less than or equal to %1.", '(n, PrimePi(n))))