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dotSCAD/docs/lib3x-hashmap_del.md
2021-03-09 17:11:02 +08:00

750 B

hashmap_put

This function deletes the mapping for the specified key from a util/map/hashmap if present. It returns a new map without the key/value.

Since: 3.0

Parameters

  • map : The original map.
  • key : Adds the specified element to the specified set
  • 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>;
use <util/map/hashmap_del.scad>;

m1 = hashmap([["k1", 10], ["k2", 20], ["k3", 30]]);
m2 = hashmap_del(m1, "k1");
assert(hashmap_get(m2, "k1") == undef);