Helpers (experimental)

Helpers (experimental)

NOTE: This should be considered unsafe API for the time being as it may change.

PDSL provides a number of helpers that can be exported from the pdsl/helpers package and may be used standalone or as part of a p expression.

import { Email, pred, btw, gt, regx } from "pdsl/helpers";

btw(1, 10)(20); // false
regx(/^foo/)("food"); // true
gt(100)(100); // false
gte(100)(100); // true
pred(9)(9); // true
pred(9)(10); // false
pred(Email)("hello@world.com"); // true
pred(Number)(1); // true
pred(String)("Hello"); // true

Available helpers:

Helper	Description	PDSL Operator
and	Logical AND	a & b or a && b
btw	Between	10 < < 100
btwe	Between or equals	10..100
deep	Deep equality	N/A
gt	Greater than	> 5
gte	Greater than or equals	>= 5
lt	Less than	< 5
lte	Less than equals	<= 5
not	Logical NOT	!6
or	Logical OR	a \| b or a \|\| b
pred	Select the correct predicate based on input	${myVal}
prim	Primitive typeof checking	Array etc.
regx	Regular expression predicate	${/^foo/}
val	Strict equality	N/A