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Contents?: true
Size: 1.61 KB
Versions: 19
Compression:
Stored size: 1.61 KB
Contents
const PATH_SEPARATOR = '.';
/**
* Retreive the nested value at `path`.
* @param {Object} object The object to search
* @param {string} path The period-delimited path to traverse
* @return {Object} An object of the structure { ok: boolean, value: any }
*/
function dig(object, path) {
const ret = {
ok: false,
value: undefined,
};
const keys = path.split(PATH_SEPARATOR);
let k;
let value = object;
/* eslint-disable no-cond-assign */
while (k = keys.shift()) {
value = value[k];
if (typeof value === 'undefined') {
return ret;
}
}
ret.ok = true;
ret.value = value;
return ret;
}
export default class VConfig {
constructor(config = {}) {
this.config = config;
}
/**
* Retrieve the entire configuration object.
* @return {Object}
*/
all() {
return this.config;
}
/**
* Determine whether `key` is present.
* @param {string} key [description]
* @return {Boolean} [description]
*/
has(key) {
return dig(this.config, key).ok;
}
/**
* Retrieve the nested value at `key`. If any keys during traversal do
* not exist, `fallback` is returned.
* @param {string} key The period-delimited path to traverse
* @param {*} fallback
* @return {*}
*/
get(key, fallback) {
if (!this.has(key)) {
return fallback;
}
const keys = key.split(PATH_SEPARATOR);
const last = keys.pop();
const obj = dig(this.config, keys.join(PATH_SEPARATOR)).value;
return obj[last];
}
}
Version data entries
19 entries across 19 versions & 2 rubygems