JavaScript解析URLパラメータ
4177 ワード
/*!
query-string
Parse and stringify URL query strings
https://github.com/sindresorhus/query-string
by Sindre Sorhus
MIT License
*/
(function () {
'use strict';
var queryString = {};
queryString.parse = function (str) {
if (typeof str !== 'string') {
return {};
}
str = str.trim().replace(/^(\?|#)/, '');
if (!str) {
return {};
}
return str.trim().split('&').reduce(function (ret, param) {
var parts = param.replace(/\+/g, ' ').split('=');
var key = parts[0];
var val = parts[1];
key = decodeURIComponent(key);
// missing `=` should be `null`:
// http://w3.org/TR/2012/WD-url-20120524/#collect-url-parameters
val = val === undefined ? null : decodeURIComponent(val);
if (!ret.hasOwnProperty(key)) {
ret[key] = val;
} else if (Array.isArray(ret[key])) {
ret[key].push(val);
} else {
ret[key] = [ret[key], val];
}
return ret;
}, {});
};
queryString.stringify = function (obj) {
return obj ? Object.keys(obj).map(function (key) {
var val = obj[key];
if (Array.isArray(val)) {
return val.map(function (val2) {
return encodeURIComponent(key) + '=' + encodeURIComponent(val2);
}).join('&');
}
return encodeURIComponent(key) + '=' + encodeURIComponent(val);
}).join('&') : '';
};
if (typeof define === 'function' && define.amd) {
define(function() { return queryString; });
} else if (typeof module !== 'undefined' && module.exports) {
module.exports = queryString;
} else {
window.queryString = queryString;
}
})();
'use strict';
var assert = require('assert');
var qs = require('./query-string');
describe('.parse()', function () {
it('should handle query strings starting with a `?`', function () {
assert.deepEqual(qs.parse('?foo=bar'), {foo: 'bar'});
});
it('should handle query strings starting with a `#`', function () {
assert.deepEqual(qs.parse('#foo=bar'), {foo: 'bar'});
});
it('should parse a qseter', function () {
assert.deepEqual(qs.parse('foo=bar'), {foo: 'bar'});
});
it('should parse multiple qseters', function () {
assert.deepEqual(qs.parse('foo=bar&key=val'), {foo: 'bar', key: 'val'});
});
it('should parse qseters without a value', function () {
assert.deepEqual(qs.parse('foo'), {foo: null});
assert.deepEqual(qs.parse('foo&key'), {foo: null, key: null});
assert.deepEqual(qs.parse('foo=bar&key'), {foo: 'bar', key: null});
});
it('should return empty object if no qss can be found', function () {
assert.deepEqual(qs.parse('?'), {});
assert.deepEqual(qs.parse('#'), {});
assert.deepEqual(qs.parse(' '), {});
});
it('should handle `+` correctly', function () {
assert.deepEqual(qs.parse('foo+faz=bar+baz++'), {'foo faz': 'bar baz '});
});
it('should handle multiple of the same key', function () {
assert.deepEqual(qs.parse('foo=bar&foo=baz'), {foo: ['bar', 'baz']});
});
});
describe('.stringify()', function () {
it('should stringify', function () {
assert.strictEqual(qs.stringify({foo: 'bar'}), 'foo=bar');
assert.strictEqual(qs.stringify({foo: 'bar', bar: 'baz'}), 'foo=bar&bar=baz');
});
it('should handle different types', function () {
assert.strictEqual(qs.stringify(), '');
assert.strictEqual(qs.stringify(0), '');
});
it('should URI encode', function () {
assert.strictEqual(qs.stringify({'foo bar': 'baz faz'}), 'foo%20bar=baz%20faz');
});
it('should handle array value', function () {
assert.strictEqual(qs.stringify({abc: 'abc', foo: ['bar', 'baz']}), 'abc=abc&foo=bar&foo=baz');
});
});