diff options
Diffstat (limited to 'node_modules/extend-shallow/index.js')
-rw-r--r-- | node_modules/extend-shallow/index.js | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/node_modules/extend-shallow/index.js b/node_modules/extend-shallow/index.js new file mode 100644 index 0000000..c9582f8 --- /dev/null +++ b/node_modules/extend-shallow/index.js @@ -0,0 +1,60 @@ +'use strict'; + +var isExtendable = require('is-extendable'); +var assignSymbols = require('assign-symbols'); + +module.exports = Object.assign || function(obj/*, objects*/) { + if (obj === null || typeof obj === 'undefined') { + throw new TypeError('Cannot convert undefined or null to object'); + } + if (!isObject(obj)) { + obj = {}; + } + for (var i = 1; i < arguments.length; i++) { + var val = arguments[i]; + if (isString(val)) { + val = toObject(val); + } + if (isObject(val)) { + assign(obj, val); + assignSymbols(obj, val); + } + } + return obj; +}; + +function assign(a, b) { + for (var key in b) { + if (hasOwn(b, key)) { + a[key] = b[key]; + } + } +} + +function isString(val) { + return (val && typeof val === 'string'); +} + +function toObject(str) { + var obj = {}; + for (var i in str) { + obj[i] = str[i]; + } + return obj; +} + +function isObject(val) { + return (val && typeof val === 'object') || isExtendable(val); +} + +/** + * Returns true if the given `key` is an own property of `obj`. + */ + +function hasOwn(obj, key) { + return Object.prototype.hasOwnProperty.call(obj, key); +} + +function isEnum(obj, key) { + return Object.prototype.propertyIsEnumerable.call(obj, key); +} |