Undefined Is Not Null: There Is a Difference – JavaScript Developer Humor V-Neck T-Shirt
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$18.96
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V-Neck T-ShirtLightweight tee, v-neck, regular fit
$18.96
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- Deeper v-neck and lightweight fabric make the perfect summery tee
- Regular fit
- Solid colors are 100% cotton
- Male model shown is 6'1" / 186 cm tall and wearing size Large
- Washing instructions: Hand or machine wash cold. Do not dry clean, bleach, tumble dry or iron on the print
- The third party printer of this product is evaluated according to International Labor Organization standards
- The printer of this product sources blanks from manufacturers that are participating members of the Fair Labor Association
- Since every item is made just for you by your local third-party fulfiller, there may be slight variances in the product received
Undefined Is Not Null: There Is a Difference – JavaScript Developer Humor
undefined !== null // there is a difference. Every JavaScript developer has been bitten by this one: two values that look like “nothing” but aren’t the same thing, and a strict equality operator that knows it. This design shows the comparison as a block of code in terminal green and red, with the punchline written as a code comment.
Made for web developers, frontend engineers and anyone who has ever debugged a “cannot read properties of undefined” error at 2 a.m. A good fit for code review survivors, team chats and coworker gift swaps.
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