Converts a source-map from/to different formats and allows adding/changing properties.
var convert = require('convert-source-map');
var json = convert
.fromComment('//@ sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJmaWxlIjoiZm9vLmpzIiwic291cmNlcyI6WyJjb25zb2xlLmxvZyhcImhpXCIpOyJdLCJuYW1lcyI6W10sIm1hcHBpbmdzIjoiQUFBQSIsInNvdXJjZVJvb3QiOiIvIn0=')
.toJSON();
var modified = convert
.fromComment('//@ sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJmaWxlIjoiZm9vLmpzIiwic291cmNlcyI6WyJjb25zb2xlLmxvZyhcImhpXCIpOyJdLCJuYW1lcyI6W10sIm1hcHBpbmdzIjoiQUFBQSIsInNvdXJjZVJvb3QiOiIvIn0=')
.setProperty('sources', [ 'CONSOLE.LOG("HI");' ])
.toJSON();
console.log(json);
console.log(modified);
{"version":3,"file":"foo.js","sources":["console.log(\"hi\");"],"names":[],"mappings":"AAAA","sourceRoot":"/"}
{"version":3,"file":"foo.js","sources":["CONSOLE.LOG(\"HI\");"],"names":[],"mappings":"AAAA","sourceRoot":"/"}
API
fromObject(obj)
Returns source map converter from given object.
fromJSON(json)
Returns source map converter from given json string.
fromBase64(base64)
Returns source map converter from given base64 encoded json string.
fromComment()
Returns source map converter from given base64 encoded json string prefixed with //@ sourceMappintURL=...
.
fromSource()
Finds last sourcemap comment in file and returns source map converter or returns null if no source map comment was found.
toObject()
Returns a copy of the underlying source map.
toJSON([space])
Converts source map to json string. If space
is given (optional), this will be passed to
JSON.stringify when the
JSON string is generated.
toBase64()
Converts source map to base64 encoded json string.
toComment()
Converts source map to base64 encoded json string prefixed with //@ sourceMappingURL=...
.
addProperty(key, value)
Adds given property to the source map. Throws an error if property already exists.
setProperty(key, value)
Sets given property to the source map. If property doesn't exist it is added, otherwise its value is updated.
getProperty(key)
Gets given property of the source map.
removeComments(src)
Returns src
with all source map comments removed
commentRegex
Returns the regex used to find source map comments.