90 lines
2.1 KiB
Plaintext
90 lines
2.1 KiB
Plaintext
/* object.cm - object creation and manipulation utilities */
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var _keys = array
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var _create = meme
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var _getPrototypeOf = Object.getPrototypeOf
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var _assign = Object.assign
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var _isArray = function(val) { return isa(val, array) }
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var _values = Object.values
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function object(arg, arg2) {
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// object(object) - shallow mutable copy
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if (isa(arg, object) && arg2 == null) {
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var result = {}
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var keys = _keys(arg)
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for (var i = 0; i < keys.length; i++) {
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result[keys[i]] = arg[keys[i]]
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}
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return result
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}
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// object(object, another_object) - combine
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if (isa(arg, object) && isa(arg2, object)) {
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var result = {}
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var keys = _keys(arg)
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for (var i = 0; i < keys.length; i++) {
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result[keys[i]] = arg[keys[i]]
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}
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keys = _keys(arg2)
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for (var i = 0; i < keys.length; i++) {
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result[keys[i]] = arg2[keys[i]]
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}
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return result
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}
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// object(object, array_of_keys) - select
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if (isa(arg, object) && _isArray(arg2)) {
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var result = {}
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for (var i = 0; i < arg2.length; i++) {
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var key = arg2[i]
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if (typeof key == 'string' && key in arg) {
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result[key] = arg[key]
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}
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}
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return result
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}
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// object(array_of_keys) - set with true values
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if (_isArray(arg) && arg2 == null) {
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var result = {}
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for (var i = 0; i < arg.length; i++) {
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var key = arg[i]
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if (typeof key == 'string') {
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result[key] = true
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}
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}
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return result
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}
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// object(array_of_keys, value) - value set
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// object(array_of_keys, function) - functional value set
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if (_isArray(arg) && arg2 != null) {
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var result = {}
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if (typeof arg2 == 'function') {
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for (var i = 0; i < arg.length; i++) {
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var key = arg[i]
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if (typeof key == 'string') {
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result[key] = arg2(key)
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}
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}
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} else {
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for (var i = 0; i < arg.length; i++) {
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var key = arg[i]
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if (typeof key == 'string') {
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result[key] = arg2
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}
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}
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}
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return result
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}
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return null
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}
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object.values = function(obj)
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{
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return _values(obj)
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}
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return object
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