JavaScript Developer Wall Art - Undefined Is Not a Function of Effort Printable

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  • Digital download
  • Digital file type(s): 1 PDF, 1 PNG

undefined is not a function... of effort. I tried my hardest, and it's still undefined. Every JavaScript developer who has stared down that exact error at 2am knows this pain by heart. It is the console.log confession of anyone who ships to the browser.

Made for the JavaScript developer, front-end engineer, or web dev in your life who has typed "undefined is not a function" more times than they can count. Print it big for the home office, the team wall, or your battlestation - or gift it for a birthday, a new job, a hackathon win, or Christmas. For the people who debug with hope and semicolons.

WHAT YOU GET: 1 high-resolution PNG file, 3757 x 2832 px at 300 DPI (prints crisp up to about 12 x 9 inch, landscape). Digital download only - no physical item ships. Commercial license for up to 500 physical prints of finished goods; reselling or redistributing the digital file is not permitted.

Design by Dreamo — original artwork rendered programmatically from code by the designer.

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Listed on Jul 22, 2026