Most JSON syntax errors are not exotic: trailing commas, single quotes, comments, bad escapes, and extra output before the first brace. Here is how they show up and why JSON rejects them.
Articles about building and maintaining websites.
Most JSON syntax errors are not exotic: trailing commas, single quotes, comments, bad escapes, and extra output before the first brace. Here is how they show up and why JSON rejects them.
encodeURIComponent escapes data inside one URL piece. encodeURI keeps the characters that hold a full address together. The two functions are not interchangeable.
Formatting adds whitespace so humans can read JSON. Minification removes it so machines can store or send a smaller string. Neither changes the data, and neither repairs invalid JSON.
A key path lists where a field sits, and it drops array indexes. A JSON Pointer addresses one value, and a slash inside a key is written as ~1.
CSV is a table of rows and columns. JSON is a typed tree. Converting an array of objects to CSV keeps nested values as JSON text in cells. That is a limit, not a failure of the table.
JSON is one value. JSON Lines (NDJSON) is one JSON value per line, usually for logs and streams. An object is not a JSON Lines file, and a pretty-printed array is not NDJSON.
JSON is a strict data language. YAML is a superset with comments, anchors, and multiple documents. Choose JSON when you need one unambiguous parse; choose YAML when humans edit config and the subset is documented.
JSON Schema is a contract for instances that already parse. A schema generated from one sample marks present keys required and cannot see optional fields, enums, or combinators.
A good URL slug is readable, stable, and honest about Unicode. This article explains separators, punctuation, accents, and what the YallaSolve generator actually does.
Seeing a JWT header and payload means the segments decoded. It does not mean the signature matches, the token is unexpired, or you should accept it.
Broader technology context around the tools we publish.
Hashing produces a fixed-size digest. Encryption produces ciphertext meant to be reversed with a key. They are not the same job, and a browser SHA-256 is not a password store.
A password generator can honor selected character sets and draw from Web Crypto. That construction is not a vault, and it does not make a password unbreakable.
JPEG, PNG, and WebP solve different jobs. Photos, flat graphics, and transparency do not share one best container, and a browser conversion is a new encoding.
A UUID is a structured 128-bit identifier with a stated version. A random string is an application-defined token. They are not interchangeable.
Working faster without inventing a new process.
Adding tax builds a gross price from a net price. Extracting tax splits a gross price. Subtracting the rate from the gross does neither.
Fractions, ratios, and proportions share arithmetic and answer different questions. This article keeps the three jobs apart and points at the matching YallaSolve tools.
GCD and LCM are a pair, not synonyms. This article explains when to reduce with GCD, when to wait for a common multiple, and how the YallaSolve tool treats zero and decimals.
Margin divides the price difference by the selling price. Markup divides that same difference by the cost. The percentages are not interchangeable.
Percentage change, percentage difference, and percentage points look similar and answer different questions. This article keeps the three formulas apart.
US mpg and Imperial mpg share the international mile and use different gallons. The Imperial number is higher because the gallon is larger, not because the car used less fuel.
A word count and a character count answer different questions. This article keeps the two jobs apart and explains the extra length rows on YallaSolve.
