Find all JSON syntax errors in this config block
Below is a configuration block that is supposed to be valid JSON but fails to parse. Identify every syntax error and state the correct fix for each. Distinguish strict syntax violations from values that merely look suspicious (a string where a boolean was likely intended).
{
"block_id": 73bf37d59d,
"padding_top": 01,
"options": {
"title_font_size": 20,5
title_font_style : null,
"has_light_background": "false",
"value": [ "mobile", ],
"items": [ { "type": "simple", "title": "Movies" ]
}
}Diagnose the cause.
The block breaks several JSON rules: an unquoted string value (73bf37d59d), a leading zero (01), a comma used as a decimal separator (20,5 must be 20.5), an unquoted key (title_font_style), a trailing comma after "mobile", and a missing closing } on the {type, title} object before its ]. Quoting "false" is legal but likely should be the boolean false.
- ✗Missing the unquoted key
title_font_style - ✗Overlooking the missing closing brace before the
itemsarray] - ✗Treating the suspicious
"false"string as a hard syntax error
- →Why does JSON forbid a leading zero in a number like
01? - →Which of these errors would a linter catch versus a schema validator?
Each flagged issue and its fix:
"block_id": 73bf37d59d— a bare token is not a valid JSON value. Quote it:"73bf37d59d"."padding_top": 01— leading zeros are forbidden in JSON numbers. Use1(or"01"if a string is intended)."title_font_size": 20,5— a comma cannot be a decimal separator. Use a dot:20.5. (A comma is also missing after the value.)title_font_style : null— keys must be double-quoted strings:"title_font_style"."value": [ "mobile", ]— remove the trailing comma after"mobile"."items": [ { "type": "simple", "title": "Movies" ]— the inner object is missing its closing}before the]."has_light_background": "false"— legal JSON (a string), but suspicious: likely the booleanfalse. A requirements/judgment observation, not a strict syntax error.
The corrected block parses:
{
"block_id": "73bf37d59d",
"padding_top": 1,
"options": {
"title_font_size": 20.5,
"title_font_style": null,
"has_light_background": false,
"value": [ "mobile" ],
"items": [ { "type": "simple", "title": "Movies" } ]
}
}Separate hard syntax violations (which fail any parser) from values that parse fine but probably contradict the intended schema.
