Common Lisp: An elegant design pattern.

Josh Betts May 17, 2021
Video Thumbnail

Josh Betts

View Channel

About

No channel description available.

Latest Posts

You May Also Like

Instant Crafting Must-Haves

AI-recommended products based on this video

Loading...
Paint Sprayer Electric Spray Gun: 700W Spray Paint Gun with 1200ml Container, 4 Nozzles & 3 Patterns, Adjustable Air Flow, Easy Cleaning for House Painting, Furniture, Fence, Walls, Door (Royal Blue)
Best Seller

Paint Sprayer Electric Spray Gun: 700W Spray Paint Gun with 1200ml Container, 4 Nozzles & 3 Patterns, Adjustable Air Flow, Easy Cleaning for House Painting, Furniture, Fence, Walls, Door (Royal Blue)

(97)
$69.99
PrimeFREE delivery Sat, Jun 14
Loading...
RoverTac Multitool Pocket Knife Tactical Camping Survival Knife Gifts for Men Dad Husband 18 in 1 Multi Tool Knife Pliers Scissors Saw Corkscrew 9-Pack Screwdrivers with Safety Lock and Nylon Sheath

RoverTac Multitool Pocket Knife Tactical Camping Survival Knife Gifts for Men Dad Husband 18 in 1 Multi Tool Knife Pliers Scissors Saw Corkscrew 9-Pack Screwdrivers with Safety Lock and Nylon Sheath

(1,514)
$32.39
FREE delivery Thu, Jun 19 on your first order
200+ bought in past month
Loading...
Maped 378146 Kidicut Safety Scissors with Fiberglass Blades, 12-Centimeter, Assorted Colours

Maped 378146 Kidicut Safety Scissors with Fiberglass Blades, 12-Centimeter, Assorted Colours

(1,197)
$2.20
FREE delivery Sat, Jun 14 on your first order
500+ bought in past month
Loading...
BIBURY Multitool Pliers BI2038B, 22-in-1 Stainless Steel Multi Tool with Flint, Window Breaker, Scissors, Back Clip, Folding Pocket Multifunctional Self-locking EDC Tool for Survival Camping Hiking

BIBURY Multitool Pliers BI2038B, 22-in-1 Stainless Steel Multi Tool with Flint, Window Breaker, Scissors, Back Clip, Folding Pocket Multifunctional Self-locking EDC Tool for Survival Camping Hiking

(1,240)
$55.99
FREE delivery Thu, Jun 19
Loading...
Victorinox Huntsman Swiss Army Knife, 15 Functions, Swiss Made Pocket Knife with Large Blade, Screwdriver, Scissors and Wood Saw - White

Victorinox Huntsman Swiss Army Knife, 15 Functions, Swiss Made Pocket Knife with Large Blade, Screwdriver, Scissors and Wood Saw - White

(645)
$66.99
$7.09 delivery Jul 8 - 29
Loading...
Clear Acrylic Cats Hair Collector with Cats Pendant Decoration Keychain Furs Container for Travel Friendly Shape Pet Memorial Box

Clear Acrylic Cats Hair Collector with Cats Pendant Decoration Keychain Furs Container for Travel Friendly Shape Pet Memorial Box

(0)
$7.43$3.50
FREE delivery Sep 11 - 16
Loading...
Legends of Rock & Metal Advent Calendar 2025, 24 Days Christmas Countdown Calendar with Iconic Musical Character Collectibles 2D Acrylic Ornaments for Rock and Metal Fans

Legends of Rock & Metal Advent Calendar 2025, 24 Days Christmas Countdown Calendar with Iconic Musical Character Collectibles 2D Acrylic Ornaments for Rock and Metal Fans

(2)
$14.99
$5.99 delivery Nov 25 - Dec 1
Loading...
10pcs Joystick Drift Fix Repair Kit for Controller, 3D Analog Joystick Circuit Board Thumbsticks Drift Fix Mod for for, for Series S/X Controller

10pcs Joystick Drift Fix Repair Kit for Controller, 3D Analog Joystick Circuit Board Thumbsticks Drift Fix Mod for for, for Series S/X Controller

(2)
$19.43
FREE delivery Sun, Aug 24 on your first order
Loading...
Gardguard 50ft Expandable Garden Hose Water Hose - Kink Free Flexible Expending Hose 50ft with 10 Function Nozzle and 3-Layers Latex, 3/4 Solid Solid Fittings, Lightweight Pipe (Blue)

Gardguard 50ft Expandable Garden Hose Water Hose - Kink Free Flexible Expending Hose 50ft with 10 Function Nozzle and 3-Layers Latex, 3/4 Solid Solid Fittings, Lightweight Pipe (Blue)

(0)
$37.99
Loading...
Expandable Garden Hose 50ft Water Hoses with 10 Function Spray Nozzle, 2025 New Superior Strength Flexible Hose, 3/4 Brass Connectors- Leakproof Lightweight Water Pipe for Gardening(Blue Black)

Expandable Garden Hose 50ft Water Hoses with 10 Function Spray Nozzle, 2025 New Superior Strength Flexible Hose, 3/4 Brass Connectors- Leakproof Lightweight Water Pipe for Gardening(Blue Black)

(98)
$32.45
FREE delivery Wed, Jun 25 on your first order
1K+ bought in past month
Loading...
(2 Pack) Outlet Wall Mount Holder for Google Home Mini and Google Nest Mini, A Space-Saving Accessories with Cord Management for Google Mini Smart Speaker, No Messy Wires or Screws

(2 Pack) Outlet Wall Mount Holder for Google Home Mini and Google Nest Mini, A Space-Saving Accessories with Cord Management for Google Mini Smart Speaker, No Messy Wires or Screws

(3,057)
$15.99
Prime
200+ bought in past month
Loading...
INIU Power Bank, USB C in&Out Slimmest 10000mAh Portable Charger, Triple 3A High-Speed Charge External Battery Pack, Flashlight Phone Charger for iPhone 16 15 14 13 12 Samsung S22 S21 Google LG iPad

INIU Power Bank, USB C in&Out Slimmest 10000mAh Portable Charger, Triple 3A High-Speed Charge External Battery Pack, Flashlight Phone Charger for iPhone 16 15 14 13 12 Samsung S22 S21 Google LG iPad

(79,368)
$25.99
FREE delivery Wed, Aug 20 on your first order
5K+ bought in past month
Loading...
Sunrad Sewing Kit for Kids Beginner Arts and Crafts, Make 9 Easy DIY Projects, Unicorn & Animal Felt Craft Educational Toys Learn to Sew, Birthday Gifts for Girls Kids Age 6-8-10-12+

Sunrad Sewing Kit for Kids Beginner Arts and Crafts, Make 9 Easy DIY Projects, Unicorn & Animal Felt Craft Educational Toys Learn to Sew, Birthday Gifts for Girls Kids Age 6-8-10-12+

(170)
$19.99
FREE delivery Sat, Jun 14 on your first order
200+ bought in past month
Loading...
STAEDTLER pencil sharpener, premium quality sharpener with screw-on lid, prevents accidental openings, compact size for pencil case and work-station, 511 63BK (Pack of 1) , Assorted colors.

STAEDTLER pencil sharpener, premium quality sharpener with screw-on lid, prevents accidental openings, compact size for pencil case and work-station, 511 63BK (Pack of 1) , Assorted colors.

(35,292)
$4.29
FREE delivery Mon, Sep 15 on your first order
8K+ bought in past month
Loading...
Amazon Basics Low-Odor Chisel Tip Dry Erase Office and Home Whiteboard Marker, Pack of 12, Assorted Colors

Amazon Basics Low-Odor Chisel Tip Dry Erase Office and Home Whiteboard Marker, Pack of 12, Assorted Colors

(31,569)
$4.49
FREE delivery Mon, Sep 15 on your first order
5K+ bought in past month
Loading...
Mibly [125 Count] 6 Inch Jumbo Multipurpose wooden Popsicle sticks, Wood Craft Supplies, Lollipop Lolly Sticks, Wooden Tongue Depressor, Wax Sticks for Waxing, Ice Cream Sticks

Mibly [125 Count] 6 Inch Jumbo Multipurpose wooden Popsicle sticks, Wood Craft Supplies, Lollipop Lolly Sticks, Wooden Tongue Depressor, Wax Sticks for Waxing, Ice Cream Sticks

(110)
$6.29
FREE delivery Thu, Sep 11 on your first order
800+ bought in past month
Loading...
BIC Brite Liner Grip Pastel Highlighter Set, Non-Toxic with Chisel Tip for Fine and Broad Lines, 6-Count Pack in Pastel Assorted Colours

BIC Brite Liner Grip Pastel Highlighter Set, Non-Toxic with Chisel Tip for Fine and Broad Lines, 6-Count Pack in Pastel Assorted Colours

(22,854)
$4.69
FREE delivery Mon, Sep 15 on your first order
7K+ bought in past month
Loading...
LEGO Ideas The Insect Collection, Fun Gift for Nature Lovers, with Life-Size Blue Morpho Butterfly, Hercules Beetle and Chinese Mantis Display Models, Bug Building Set and Nature Décor, 21342

LEGO Ideas The Insect Collection, Fun Gift for Nature Lovers, with Life-Size Blue Morpho Butterfly, Hercules Beetle and Chinese Mantis Display Models, Bug Building Set and Nature Décor, 21342

(1,545)
$89.98$88.87
PrimeFREE delivery Sat, Jun 14
100+ bought in past month
Loading...
Monkey Costume Set - Monkey Ears and Tail Set, Fashionable Monkeys Ears Headband, Tail, Long-Tailed Simulation | Halloween

Monkey Costume Set - Monkey Ears and Tail Set, Fashionable Monkeys Ears Headband, Tail, Long-Tailed Simulation | Halloween

(0)
$8.69
$2.99 delivery Nov 18 - Dec 8
Loading...
Handmade 2-Piece Baby Canada Set, Custom Handmade Canada Maple Leaf Long Sleeve Footed Zippered Baby Bodysuit and Hat Set (Bright Red, 3-6 months)

Handmade 2-Piece Baby Canada Set, Custom Handmade Canada Maple Leaf Long Sleeve Footed Zippered Baby Bodysuit and Hat Set (Bright Red, 3-6 months)

(0)
$42.82
FREE delivery Sun, Jul 6
Loading...
DOWN HOME Cooling Comforter Queen Size, Cooling Blanket for Hot Sleepers All Season, Q-max>0.4 Double-Side Cold Fabric, Bamboo Breathable Lightweight Summer Duvet Soft Quilt, Blue Strips, 90"x90" OEKO-TEX STANDARD 100

DOWN HOME Cooling Comforter Queen Size, Cooling Blanket for Hot Sleepers All Season, Q-max>0.4 Double-Side Cold Fabric, Bamboo Breathable Lightweight Summer Duvet Soft Quilt, Blue Strips, 90"x90" OEKO-TEX STANDARD 100

(37)
$112.99$99.99
$13.98 delivery Wed, Sep 3
Loading...
DOWN HOME Cooling Comforter King Size, Cooling Blanket for Hot Sleepers All Season, Q-max>0.4 Double-Side Cold Fabric, Bamboo Breathable Lightweight Summer Duvet Soft Quilt, Blue Strips, 90"x108" OEKO-TEX STANDARD 100
Best Seller

DOWN HOME Cooling Comforter King Size, Cooling Blanket for Hot Sleepers All Season, Q-max>0.4 Double-Side Cold Fabric, Bamboo Breathable Lightweight Summer Duvet Soft Quilt, Blue Strips, 90"x108" OEKO-TEX STANDARD 100

(33)
$115.49$109.99
$15.55 delivery Sep 9 - 11
1K+ bought in past month