Prettify or minify a JSON string

Prettify adds indentation to a JSON string; minify removes all indentation/whitespace.

prettify(txt, indent = 4)

minify(txt)

Arguments

txt

JSON string

indent

number of spaces to indent. Use a negative number for tabs instead of spaces.

Examples

myjson <- toJSON(cars)
cat(myjson)
#> [{"speed":4,"dist":2},{"speed":4,"dist":10},{"speed":7,"dist":4},{"speed":7,"dist":22},{"speed":8,"dist":16},{"speed":9,"dist":10},{"speed":10,"dist":18},{"speed":10,"dist":26},{"speed":10,"dist":34},{"speed":11,"dist":17},{"speed":11,"dist":28},{"speed":12,"dist":14},{"speed":12,"dist":20},{"speed":12,"dist":24},{"speed":12,"dist":28},{"speed":13,"dist":26},{"speed":13,"dist":34},{"speed":13,"dist":34},{"speed":13,"dist":46},{"speed":14,"dist":26},{"speed":14,"dist":36},{"speed":14,"dist":60},{"speed":14,"dist":80},{"speed":15,"dist":20},{"speed":15,"dist":26},{"speed":15,"dist":54},{"speed":16,"dist":32},{"speed":16,"dist":40},{"speed":17,"dist":32},{"speed":17,"dist":40},{"speed":17,"dist":50},{"speed":18,"dist":42},{"speed":18,"dist":56},{"speed":18,"dist":76},{"speed":18,"dist":84},{"speed":19,"dist":36},{"speed":19,"dist":46},{"speed":19,"dist":68},{"speed":20,"dist":32},{"speed":20,"dist":48},{"speed":20,"dist":52},{"speed":20,"dist":56},{"speed":20,"dist":64},{"speed":22,"dist":66},{"speed":23,"dist":54},{"speed":24,"dist":70},{"speed":24,"dist":92},{"speed":24,"dist":93},{"speed":24,"dist":120},{"speed":25,"dist":85}]
prettify(myjson)
#> [
#>     {
#>         "speed": 4,
#>         "dist": 2
#>     },
#>     {
#>         "speed": 4,
#>         "dist": 10
#>     },
#>     {
#>         "speed": 7,
#>         "dist": 4
#>     },
#>     {
#>         "speed": 7,
#>         "dist": 22
#>     },
#>     {
#>         "speed": 8,
#>         "dist": 16
#>     },
#>     {
#>         "speed": 9,
#>         "dist": 10
#>     },
#>     {
#>         "speed": 10,
#>         "dist": 18
#>     },
#>     {
#>         "speed": 10,
#>         "dist": 26
#>     },
#>     {
#>         "speed": 10,
#>         "dist": 34
#>     },
#>     {
#>         "speed": 11,
#>         "dist": 17
#>     },
#>     {
#>         "speed": 11,
#>         "dist": 28
#>     },
#>     {
#>         "speed": 12,
#>         "dist": 14
#>     },
#>     {
#>         "speed": 12,
#>         "dist": 20
#>     },
#>     {
#>         "speed": 12,
#>         "dist": 24
#>     },
#>     {
#>         "speed": 12,
#>         "dist": 28
#>     },
#>     {
#>         "speed": 13,
#>         "dist": 26
#>     },
#>     {
#>         "speed": 13,
#>         "dist": 34
#>     },
#>     {
#>         "speed": 13,
#>         "dist": 34
#>     },
#>     {
#>         "speed": 13,
#>         "dist": 46
#>     },
#>     {
#>         "speed": 14,
#>         "dist": 26
#>     },
#>     {
#>         "speed": 14,
#>         "dist": 36
#>     },
#>     {
#>         "speed": 14,
#>         "dist": 60
#>     },
#>     {
#>         "speed": 14,
#>         "dist": 80
#>     },
#>     {
#>         "speed": 15,
#>         "dist": 20
#>     },
#>     {
#>         "speed": 15,
#>         "dist": 26
#>     },
#>     {
#>         "speed": 15,
#>         "dist": 54
#>     },
#>     {
#>         "speed": 16,
#>         "dist": 32
#>     },
#>     {
#>         "speed": 16,
#>         "dist": 40
#>     },
#>     {
#>         "speed": 17,
#>         "dist": 32
#>     },
#>     {
#>         "speed": 17,
#>         "dist": 40
#>     },
#>     {
#>         "speed": 17,
#>         "dist": 50
#>     },
#>     {
#>         "speed": 18,
#>         "dist": 42
#>     },
#>     {
#>         "speed": 18,
#>         "dist": 56
#>     },
#>     {
#>         "speed": 18,
#>         "dist": 76
#>     },
#>     {
#>         "speed": 18,
#>         "dist": 84
#>     },
#>     {
#>         "speed": 19,
#>         "dist": 36
#>     },
#>     {
#>         "speed": 19,
#>         "dist": 46
#>     },
#>     {
#>         "speed": 19,
#>         "dist": 68
#>     },
#>     {
#>         "speed": 20,
#>         "dist": 32
#>     },
#>     {
#>         "speed": 20,
#>         "dist": 48
#>     },
#>     {
#>         "speed": 20,
#>         "dist": 52
#>     },
#>     {
#>         "speed": 20,
#>         "dist": 56
#>     },
#>     {
#>         "speed": 20,
#>         "dist": 64
#>     },
#>     {
#>         "speed": 22,
#>         "dist": 66
#>     },
#>     {
#>         "speed": 23,
#>         "dist": 54
#>     },
#>     {
#>         "speed": 24,
#>         "dist": 70
#>     },
#>     {
#>         "speed": 24,
#>         "dist": 92
#>     },
#>     {
#>         "speed": 24,
#>         "dist": 93
#>     },
#>     {
#>         "speed": 24,
#>         "dist": 120
#>     },
#>     {
#>         "speed": 25,
#>         "dist": 85
#>     }
#> ]
#>  
minify(myjson)
#> [{"speed":4,"dist":2},{"speed":4,"dist":10},{"speed":7,"dist":4},{"speed":7,"dist":22},{"speed":8,"dist":16},{"speed":9,"dist":10},{"speed":10,"dist":18},{"speed":10,"dist":26},{"speed":10,"dist":34},{"speed":11,"dist":17},{"speed":11,"dist":28},{"speed":12,"dist":14},{"speed":12,"dist":20},{"speed":12,"dist":24},{"speed":12,"dist":28},{"speed":13,"dist":26},{"speed":13,"dist":34},{"speed":13,"dist":34},{"speed":13,"dist":46},{"speed":14,"dist":26},{"speed":14,"dist":36},{"speed":14,"dist":60},{"speed":14,"dist":80},{"speed":15,"dist":20},{"speed":15,"dist":26},{"speed":15,"dist":54},{"speed":16,"dist":32},{"speed":16,"dist":40},{"speed":17,"dist":32},{"speed":17,"dist":40},{"speed":17,"dist":50},{"speed":18,"dist":42},{"speed":18,"dist":56},{"speed":18,"dist":76},{"speed":18,"dist":84},{"speed":19,"dist":36},{"speed":19,"dist":46},{"speed":19,"dist":68},{"speed":20,"dist":32},{"speed":20,"dist":48},{"speed":20,"dist":52},{"speed":20,"dist":56},{"speed":20,"dist":64},{"speed":22,"dist":66},{"speed":23,"dist":54},{"speed":24,"dist":70},{"speed":24,"dist":92},{"speed":24,"dist":93},{"speed":24,"dist":120},{"speed":25,"dist":85}]