TemplateApply¶

Fills the slots of a template string.

$ wo 'TemplateApply["x = `x`", <|"x" -> 1|>]'
x = 1

A StringTemplate object may be given instead of the raw text:

$ wo 'TemplateApply[StringTemplate["Hello, my name is ``."], {"Bob"}]'
Hello, my name is Bob.

<*expr*> is an expression slot, evaluated inline. With no arguments to fill, the one-argument form still runs them:

$ wo 'TemplateApply["x <*2^3*> y"]'
x 8 y

A template need not be a string. In an expression template TemplateSlot is filled, TemplateIf chooses a clause, and TemplateSequence splices one copy of its body per list element:

$ wo 'TemplateApply[{a, TemplateSequence[b, {1, 2, 3}], c}]'
{a, b, b, b, c}

$ wo 'TemplateApply[{a, TemplateIf[False, x, y], c}]'
{a, y, c}