92 lines
2.2 KiB
JavaScript
92 lines
2.2 KiB
JavaScript
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var Hash = function(obj) {
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Object.extend(this, obj || {});
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};
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Object.extend(Hash, {
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toQueryString: function(obj) {
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var parts = [];
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this.prototype._each.call(obj, function(pair) {
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if (!pair.key) return;
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if (pair.value && pair.value.constructor == Array) {
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var values = pair.value.compact();
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if (values.length < 2) pair.value = values.reduce();
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else {
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key = encodeURIComponent(pair.key);
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values.each(function(value) {
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value = value != undefined ? encodeURIComponent(value) : '';
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parts.push(key + '=' + encodeURIComponent(value));
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});
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return;
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}
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}
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if (pair.value == undefined) pair[1] = '';
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parts.push(pair.map(encodeURIComponent).join('='));
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});
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return parts.join('&');
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}
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});
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Object.extend(Hash.prototype, Enumerable);
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Object.extend(Hash.prototype, {
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_each: function(iterator) {
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for (var key in this) {
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var value = this[key];
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if (value && value == Hash.prototype[key]) continue;
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var pair = [key, value];
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pair.key = key;
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pair.value = value;
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iterator(pair);
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}
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},
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keys: function() {
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return this.pluck('key');
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},
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values: function() {
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return this.pluck('value');
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},
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merge: function(hash) {
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return $H(hash).inject(this, function(mergedHash, pair) {
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mergedHash[pair.key] = pair.value;
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return mergedHash;
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});
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},
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remove: function() {
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var result;
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for(var i = 0, length = arguments.length; i < length; i++) {
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var value = this[arguments[i]];
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if (value !== undefined){
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if (result === undefined) result = value;
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else {
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if (result.constructor != Array) result = [result];
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result.push(value)
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}
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}
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delete this[arguments[i]];
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}
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return result;
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},
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toQueryString: function() {
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return Hash.toQueryString(this);
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},
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inspect: function() {
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return '#<Hash:{' + this.map(function(pair) {
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return pair.map(Object.inspect).join(': ');
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}).join(', ') + '}>';
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}
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});
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function $H(object) {
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if (object && object.constructor == Hash) return object;
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return new Hash(object);
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};
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