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node_modules/@riotjs/util/objects.js

@@ -0,0 +1,60 @@
+
+/**
+ * Helper function to set an immutable property
+ * @param   {Object} source - object where the new property will be set
+ * @param   {string} key - object key where the new property will be stored
+ * @param   {*} value - value of the new property
+ * @param   {Object} options - set the propery overriding the default options
+ * @returns {Object} - the original object modified
+ */
+export function defineProperty(source, key, value, options = {}) {
+  /* eslint-disable fp/no-mutating-methods */
+  Object.defineProperty(source, key, {
+    value,
+    enumerable: false,
+    writable: false,
+    configurable: true,
+    ...options
+  })
+  /* eslint-enable fp/no-mutating-methods */
+
+  return source
+}
+
+/**
+ * Define multiple properties on a target object
+ * @param   {Object} source - object where the new properties will be set
+ * @param   {Object} properties - object containing as key pair the key + value properties
+ * @param   {Object} options - set the propery overriding the default options
+ * @returns {Object} the original object modified
+ */
+export function defineProperties(source, properties, options) {
+  Object.entries(properties).forEach(([key, value]) => {
+    defineProperty(source, key, value, options)
+  })
+
+  return source
+}
+
+/**
+ * Define default properties if they don't exist on the source object
+ * @param   {Object} source - object that will receive the default properties
+ * @param   {Object} defaults - object containing additional optional keys
+ * @returns {Object} the original object received enhanced
+ */
+export function defineDefaults(source, defaults) {
+  Object.entries(defaults).forEach(([key, value]) => {
+    if (!source[key]) source[key] = value
+  })
+
+  return source
+}
+
+/**
+ * Simple clone deep function, do not use it for classes or recursive objects!
+ * @param   {*} source - possibily an object to clone
+ * @returns {*} the object we wanted to clone
+ */
+export function cloneDeep(source) {
+  return JSON.parse(JSON.stringify(source))
+}