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Contents
var forOwn = require('./forOwn');
var isPlainObject = require('../lang/isPlainObject');
/*
* Helper function to flatten to a destination object.
* Used to remove the need to create intermediate objects while flattening.
*/
function flattenTo(obj, result, prefix, level) {
forOwn(obj, function (value, key) {
var nestedPrefix = prefix ? prefix + '.' + key : key;
if (level !== 0 && isPlainObject(value)) {
flattenTo(value, result, nestedPrefix, level - 1);
} else {
result[nestedPrefix] = value;
}
});
return result;
}
/**
* Recursively flattens an object.
* A new object containing all the elements is returned.
* If level is specified, it will only flatten up to that level.
*/
function flatten(obj, level) {
if (obj == null) {
return {};
}
level = level == null ? -1 : level;
return flattenTo(obj, {}, '', level);
}
module.exports = flatten;
Version data entries
62 entries across 62 versions & 1 rubygems