dotSCAD/docs/lib3x-hashmap_get.md

hashmap_get

This function gets the value of the specified key from a util/map/hashmap. If the key doesn't exist, return undef.

Since: 3.0

Parameters

• map : The original map.
• key : The specified key.
• eq : A equality function. If it's ignored, use == to compare elements.
• hash : A hash function. If it's ignored, convert each element to a string and hash it.

Examples

use <util/map/hashmap.scad>
use <util/map/hashmap_get.scad>

m = hashmap([["k1", 10], ["k2", 20], ["k3", 30]]);
assert(hashmap_get(m, "k2") == 20);