Library for generating and applying protobuf FieldMask
/**
* Generates field mask that includes all non-function own properties on specified object
* @param {*} object - object to generate field mask from
* @returns {string[]} - generated field mask
*/
function generateFieldMask(object)
The name of the properties containing . or \ characters are escaped.
For an example, running this function with this input:
{
f: {
a: 22,
b: {
d: 1
},
'b.d': 33,
'x\\y': 44
}
}
generates this output:
['f.a', 'f.b.d', 'f.b\\.d', "f.x\\\\y"]
/**
* Creates a new object that copies fields present in field mask from specified source object
* @param {*} sourceObject - object to apply field mask to
* @param {string[]} fieldMask
* @returns {*} - new object created by applying field mask on source object or original entity if source is not an object
*/
function applyFieldMask(sourceObject, fieldMask)
Respects the escaping of the property names in the fieldMask.
For an example, running this function with this input:
{
f: {
a: 22,
b: {
d: 1,
x: 2
},
'b.d': 33,
y: 13
},
z: 8
},
['f.a', 'f.b.d', 'f.b\\.d']
generates this output:
{
f: {
a: 22,
b: {
d: 1
},
'b.d': 33
}
}