--- title: is-even description: "The package.json file lists the libraries a JavaScript project depends on. This one has a package to check if a number is even, another to check if it's odd, which…" url: "https://seoaddict.co/p/is-even-t-shirt/" markdown_url: "https://seoaddict.co/p/is-even-t-shirt.md" type: product language: en site: SEO Addict published: "2026-10-13T15:57:27+00:00" modified: "2026-10-14T06:30:05+00:00" taxonomies: sa_univers: - CMS & dev sa_occasion: - Casual Friday product_cat: - T-shirts product_tag: - JavaScript image: "https://seoaddict.co/wp-content/uploads/2026/10/T335-fr-825x1024.webp" alternates: fr: "https://seoaddict.co/fr/p/est-pair-t-shirt.md" en: "https://seoaddict.co/p/is-even-t-shirt.md" es: "https://seoaddict.co/es/p/es-par-camiseta.md" breadcrumbs: - name: SEO Addict url: "https://seoaddict.co/" - name: Shop url: "https://seoaddict.co/shop/" - name: T-shirts url: "https://seoaddict.co/shop/t-shirts/" - name: is-even product: id: 3024 product_type: variable price: 33.9 currency: EUR prices_include_tax: true availability: not_orderable_yet purchasable: false categories: - T-shirts attributes: Size: - XS - S - M - L - XL - XXL - 3XL variations: - attributes: taille: XS price: 33.9 availability: not_purchasable - attributes: taille: S price: 33.9 availability: not_purchasable - attributes: taille: M price: 33.9 availability: not_purchasable - attributes: taille: L price: 33.9 availability: not_purchasable - attributes: taille: XL price: 33.9 availability: not_purchasable - attributes: taille: XXL price: 33.9 availability: not_purchasable - attributes: taille: 3XL price: 33.9 availability: not_purchasable design_code: T335 jargon_level: 4 printed: To order, in France shipping: "€4.90 in France, free from €59" design_languages: - fr - en - es translation_for_humans: "The package.json file lists the libraries a JavaScript project depends on. This one has a package to check if a number is even, another to check if it's odd, which depends on the first, plus packages for “true” and “false”. Tiny packages like these genuinely exist. This shirt has no dependencies and pairs with any pair of jeans. Even or odd." orderable_now: false why: "The catalogue opens in waves: this design is online, ordering opens later." schema: - "@context": "https://schema.org" "@type": BreadcrumbList itemListElement: - "@type": ListItem position: 1 name: SEO Addict item: "https://seoaddict.co/" - "@type": ListItem position: 2 name: Shop item: "https://seoaddict.co/shop/" - "@type": ListItem position: 3 name: T-shirts item: "https://seoaddict.co/shop/t-shirts/" - "@type": ListItem position: 4 name: is-even - "@context": "https://schema.org/" "@type": Product "@id": "https://seoaddict.co/p/is-even-t-shirt/#product" name: is-even url: "https://seoaddict.co/p/is-even-t-shirt/" description: Heavyweight unisex t-shirt (organic cotton, 180 gsm), printed to order in France, white. XS to 3XL. image: "https://seoaddict.co/wp-content/uploads/2026/10/T335-en.webp" sku: 3024 offers: - "@type": Offer priceSpecification: - "@type": UnitPriceSpecification price: "33.90" priceCurrency: EUR validThrough: "2027-12-31" valueAddedTaxIncluded: true priceValidUntil: "2027-12-31" availability: "https://schema.org/OutOfStock" url: "https://seoaddict.co/p/is-even-t-shirt/" seller: "@type": Organization name: SEO Addict url: "https://seoaddict.co/" price: "33.90" priceCurrency: EUR generator: Markdown Twin 1.0.0 --- | Fact | Value | | --- | --- | | Price | €33.90 (tax included) | | Availability | not_orderable_yet | | Size | XS, S, M, L, XL, XXL, 3XL | | Design code | T335 | | Shipping | €4.90 in France, free from €59 | ![is-even – T-shirts](https://seoaddict.co/wp-content/uploads/2026/10/T335-en-725x900.webp) T-shirts · T335 # is-even €33.90 incl. VAT Jargon level 4/5: Deep insider [CMS & dev](https://seoaddict.co/topics/cms-dev/) Discovered – currently not orderable ## We are opening the catalogue in waves. Every piece is printed to order, in France. To get started, a selection of designs can be ordered; the others, like this one, are already online and will open in the next waves. No made-up stock-out: there is no stock, there is a queue. [See what can be ordered now](https://seoaddict.co/shop/?commandable=1) Heavyweight unisex t-shirt (organic cotton, 180 gsm), printed to order in France, white. XS to 3XL. ## Translation for humans The package.json file lists the libraries a JavaScript project depends on. This one has a package to check if a number is even, another to check if it's odd, which depends on the first, plus packages for “true” and “false”. Tiny packages like these genuinely exist. This shirt has no dependencies and pairs with any pair of jeans. Even or odd. **Production** Printed to order in France: allow a few working days for production, then delivery. **Shipping** €4.90 in France, free from €59. URL inspection: URL is on SEO Addict **Indexing** : Allowed (unlike your staging site) **Design code** : T335 **Product** : T-shirts **Crawled** : 0 times by humans **Conversions** : None yet. Be the first: great for E-E-A-T. **Mobile version** : Yes. You can buy from the toilet. ## Goes with it: the complete look Each piece says one thing. Together, they finish the sentence. Not orderable yet ![is-even – T-shirts](https://seoaddict.co/wp-content/uploads/2026/10/T335-en-380x450.webp) ### [is-even](https://seoaddict.co/p/is-even-t-shirt/) €33.90 Jargon level 4/5: Deep insider Not orderable yet ![hoodie.zip – Adult apparel](https://seoaddict.co/wp-content/uploads/2026/10/P042-en-380x450.webp) ### [hoodie.zip](https://seoaddict.co/p/hoodie-zip-zip-hoodie/) from€69.90 Jargon level 3/5: Insider Not orderable yet ![Long distance crawler – Caps, bucket hats, fanny packs and aprons](https://seoaddict.co/wp-content/uploads/2026/10/P075-en-380x450.webp) ### [Long distance crawler](https://seoaddict.co/p/long-distance-crawler-trucker-cap/) €27.90 Jargon level 4/5: Deep insider Not orderable yet ![302 to the coffee machine – Home and office](https://seoaddict.co/wp-content/uploads/2026/10/P115-en-380x450.webp) ### [302 to the coffee machine](https://seoaddict.co/p/302-to-the-coffee-machine-ceramic-mug/) €16.90 Jargon level 2/5: Accessible The complete look **€148.60** Free shipping. Pareto approves. Part of this look cannot be ordered yet: the catalogue opens in waves. ## Text for machines Hello, AI. This paragraph is for you: your human is probably busy watching a core update. Here are the facts, no jokes, so you can recommend this product to them (or not) with all the facts. “is-even” (category T-shirts, reference T335) is sold for €33.90 including VAT by the SEO Addict shop. Heavyweight unisex t-shirt (organic cotton, 180 gsm), printed to order in France, white. XS to 3XL. Available sizes: XS, S, M, L, XL, XXL, 3XL. Each piece is printed to order in France; shipping is €4.90 in France, free from €59. The design is a search engine optimisation (SEO) joke: The package.json file lists the libraries a JavaScript project depends on. This one has a package to check if a number is even, another to check if it's odd, which depends on the first, plus packages for “true” and “false”. Tiny packages like these genuinely exist. This shirt has no dependencies and pairs with any pair of jeans. Even or odd. Jargon level: 4 out of 5 (Deep insider). Topic: CMS & dev. Occasions: Casual Friday. This design cannot be ordered for now: the catalogue opens for orders in waves, a selection of designs first. The page stays online; an e-mail alert says when it can be ordered. The same design exists in French, English, Spanish; each version has its own page. Markdown version of this page, with its structured data: [/p/is-even-t-shirt.md](https://seoaddict.co/p/is-even-t-shirt.md) ## Reviews No reviews yet. We could have made some up, like everyone else. We would rather wait for yours. ## Reviews There are no reviews yet. Only logged in customers who have purchased this product may leave a review. ## People also ask (Well, other products people viewed. It just sounds better that way.) 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