{"id":4841,"date":"2013-11-24T16:39:43","date_gmt":"2013-11-24T07:39:43","guid":{"rendered":"http:\/\/www.webcyou.com\/?p=4841"},"modified":"2017-11-08T16:48:15","modified_gmt":"2017-11-08T07:48:15","slug":"%e3%80%90js%e3%80%91%e3%80%90%e4%bf%9d%e5%ad%98%e7%89%88%e3%80%91underscore-js-%e3%81%ae%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95-%e3%81%be%e3%81%a8%e3%82%81-object-functions","status":"publish","type":"post","link":"https:\/\/www.webcyou.com\/?p=4841","title":{"rendered":"\u3010JS\u3011\u3010\u4fdd\u5b58\u7248\u3011underscore.js \u306e\u4f7f\u7528\u65b9\u6cd5 \u307e\u3068\u3081 Object Functions"},"content":{"rendered":"

\"\"<\/p>\n

underscore.js<\/h4>\n

\u5f15\u304d\u7d9a\u304d\u3001underscore.js \u306e Object Functions\u306e\u307e\u3068\u3081\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n

keys<\/h5>\n

_.keys(object)<\/p>\n

\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u3059\u3079\u3066\u306e\u540d\u524d\u3092\u53d6\u5f97\u3057\u307e\u3059\u3002<\/p>\n

_.keys({one: 1, two: 2, three: 3});\r\n=> ["one", "two", "three"]<\/pre>\n
values<\/h5>\n
_.values(object)<\/p>\n
\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u3059\u3079\u3066\u306e\u5024\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n
_.values({one: 1, two: 2, three: 3});\r\n=> [1, 2, 3]<\/pre>\n
pairs<\/h5>\n
_.pairs(object)<\/p>\n
\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092[key\u3001value] \u30da\u30a2\u306e\u30ea\u30b9\u30c8\u306b\u5909\u63db\u3057\u307e\u3059\u3002<\/p>\n
_.pairs({one: 1, two: 2, three: 3});\r\n=> [["one", 1], ["two", 2], ["three", 3]]<\/pre>\n
invert<\/h5>\n
_.invert(object)<\/p>\n
\u30ad\u30fc\u304c\u5024\u306b\u306a\u3063\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30b3\u30d4\u30fc\u3068\u30ad\u30fc\u306e\u5024\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n
\u3053\u308c\u3092\u884c\u3046\u306b\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u5024\u306f\u3059\u3079\u3066\u4e00\u610f\u3067\u3001\u6587\u5b57\u5217\u3092\u30b7\u30ea\u30a2\u30eb\u5316\u3067\u304d\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
_.invert({Moe: "Moses", Larry: "Louis", Curly: "Jerome"});\r\n=> {Moses: "Moe", Louis: "Larry", Jerome: "Curly"};<\/pre>\n
functions<\/h5>\n
_.functions(object)<\/p>\n
\u00a0<\/p>\n
Alias:\u00a0methods<\/p>\n
\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u5185\u306e\u3059\u3079\u3066\u306e\u30e1\u30bd\u30c3\u30c9\u306e\u540d\u524d\u306e\u30bd\u30fc\u30c8\u3055\u308c\u305f\u30ea\u30b9\u30c8\u3001\u3064\u307e\u308a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u3059\u3079\u3066\u306e\u95a2\u6570\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u540d\u524d\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n
_.functions(_);\r\n=> ["all", "any", "bind", "bindAll", "clone", "compact", "compose" ...<\/pre>\n
extend<\/h5>\n
_.extend(destination, *sources)<\/p>\n
\u30bd\u30fc\u30b9\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u5185\u306e\u3059\u3079\u3066\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u5b9b\u5148\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u30b3\u30d4\u30fc\u3057\u3001\u5b9b\u5148\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n
\u305d\u308c\u306f\u9806\u5e8f\u901a\u308a\u3067\u3042\u308a\u3001\u6700\u5f8c\u306e\u30bd\u30fc\u30b9\u306f\u524d\u306e\u5f15\u6570\u306e\u540c\u3058\u540d\u524d\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u4e0a\u66f8\u304d\u3057\u307e\u3059\u3002<\/p>\n
_.extend({name: 'moe'}, {age: 50});\r\n=> {name: 'moe', age: 50}<\/pre>\n
pick<\/h5>\n
_.pick(object, *keys)<\/p>\n
\u30db\u30ef\u30a4\u30c8\u30ea\u30b9\u30c8\u306b\u767b\u9332\u3055\u308c\u305f\u30ad\u30fc\uff08\u307e\u305f\u306f\u6709\u52b9\u306a\u30ad\u30fc\u306e\u914d\u5217\uff09\u306e\u5024\u306e\u307f\u3092\u6301\u3064\u3088\u3046\u306b\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3055\u308c\u305f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30b3\u30d4\u30fc\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n
_.pick({name: 'moe', age: 50, userid: 'moe1'}, 'name', 'age');\r\n=> {name: 'moe', age: 50}<\/pre>\n
omit<\/h5>\n
_.omit(object, *keys)<\/p>\n
\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u306e\u30ad\u30fc\uff08\u307e\u305f\u306f\u30ad\u30fc\u306e\u914d\u5217\uff09\u3092\u7701\u7565\u3059\u308b\u3088\u3046\u306b\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3055\u308c\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30b3\u30d4\u30fc\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n
_.omit({name: 'moe', age: 50, userid: 'moe1'}, 'userid');\r\n=> {name: 'moe', age: 50}<\/pre>\n
defaults<\/h5>\n
_.defaults(object, *defaults)<\/p>\n
defaults\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u5024\u3067\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u672a\u5b9a\u7fa9\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u57cb\u3081\u8fbc\u307f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n
\u30d7\u30ed\u30d1\u30c6\u30a3\u304c\u6e80\u305f\u3055\u308c\u308b\u3068\u3059\u3050\u306b\u3001\u305d\u308c\u4ee5\u4e0a\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u306f\u52b9\u679c\u3092\u6301\u3061\u307e\u305b\u3093\u3002<\/p>\n
var iceCream = {flavor: "chocolate"};\r\n_.defaults(iceCream, {flavor: "vanilla", sprinkles: "lots"});\r\n=> {flavor: "chocolate", sprinkles: "lots"}<\/pre>\n
clone<\/h5>\n
_.clone(object)<\/p>\n
\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u6d45\u3044\u30b3\u30d4\u30fc\u30af\u30ed\u30fc\u30f3\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002
\n\u30cd\u30b9\u30c8\u3055\u308c\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u307e\u305f\u306f\u914d\u5217\u306f\u3001\u8907\u88fd\u3055\u308c\u305a\u306b\u53c2\u7167\u306b\u3088\u3063\u3066\u30b3\u30d4\u30fc\u3055\u308c\u307e\u3059\u3002<\/p>\n
_.clone({name: 'moe'});\r\n=> {name: 'moe'};<\/pre>\n
tap<\/h5>\n
_.tap(object, interceptor)<\/p>\n
\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3067\u30a4\u30f3\u30bf\u30fc\u30bb\u30d7\u30bf\u3092\u547c\u3073\u51fa\u3057\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n
\u3053\u306e\u30e1\u30bd\u30c3\u30c9\u306e\u4e3b\u306a\u76ee\u7684\u306f\u3001\u30c1\u30a7\u30fc\u30f3\u5185\u306e\u4e2d\u9593\u7d50\u679c\u306b\u5bfe\u3057\u3066\u64cd\u4f5c\u3092\u5b9f\u884c\u3059\u308b\u305f\u3081\u306b\u3001\u30e1\u30bd\u30c3\u30c9\u30c1\u30a7\u30fc\u30f3\u3092\u300c\u30bf\u30c3\u30d7\u30a4\u30f3\u300d\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/p>\n
_.chain([1,2,3,200])\r\n  .filter(function(num) { return num % 2 == 0; })\r\n  .tap(alert)\r\n  .map(function(num) { return num * num })\r\n  .value();\r\n=> \/\/ [2, 200] (alerted)\r\n=> [4, 40000]<\/pre>\n
has<\/h5>\n
_.has(object, key)<\/p>\n
\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u306f\u6307\u5b9a\u3055\u308c\u305f\u30ad\u30fc\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u304b\u5426\u304b\u3092\u5224\u5b9a\u3002
\nobject.hasOwnProperty\uff08key\uff09\u3068\u540c\u3058\u3067\u3059\u304c\u3001\u8aa4\u3063\u3066\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306b\u5099\u3048\u3066\u3001hasOwnProperty\u95a2\u6570\u3078\u306e\u5b89\u5168\u306a\u53c2\u7167\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n
_.has({a: 1, b: 2, c: 3}, "b");\r\n=> true<\/pre>\n
isEqual<\/h5>\n
_.isEqual(object, other)<\/p>\n
2\u3064\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u6700\u9069\u5316\u3057\u3066\u8a73\u7d30\u306b\u6bd4\u8f03\u3057\u3001\u7b49\u3057\u3044\u304b\u3069\u3046\u304b\u3092\u5224\u65ad\u3057\u307e\u3059\u3002<\/p>\n
var moe   = {name: 'moe', luckyNumbers: [13, 27, 34]};\r\nvar clone = {name: 'moe', luckyNumbers: [13, 27, 34]};\r\nmoe == clone;\r\n=> false\r\n_.isEqual(moe, clone);\r\n=> true<\/pre>\n
isEmpty<\/h5>\n
_.isEmpty(object)<\/p>\n
\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u5024\u304c\u542b\u307e\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u306ftrue\u3092\u8fd4\u3057\u307e\u3059\uff08\u5217\u6319\u53ef\u80fd\u306a\u72ec\u81ea\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u306f\u3042\u308a\u307e\u305b\u3093\uff09\u3002<\/p>\n
_.isEmpty([1, 2, 3]);\r\n=> false\r\n_.isEmpty({});\r\n=> true<\/pre>\n
isElement<\/h5>\n
_.isElement(object)<\/p>\n
\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u3001DOM\u8981\u7d20\u306e\u5834\u5408\u306ftrue\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n
_.isElement(jQuery('body')[0]);\r\n=> true<\/pre>\n
isArray<\/h5>\n
_.isArray(object)<\/p>\n
\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304cArray\u306e\u5834\u5408\u306ftrue\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n
(function(){ return _.isArray(arguments); })();\r\n=> false\r\n_.isArray([1,2,3]);\r\n=> true<\/pre>\n
isObject<\/h5>\n
_.isObject(value)<\/p>\n
\u5024\u304cObject\u306e\u5834\u5408\u306ftrue\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n
JavaScript\u914d\u5217\u3068\u95a2\u6570\u306f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3067\u3042\u308a\u3001\uff08\u901a\u5e38\u306e\uff09\u6587\u5b57\u5217\u3068\u6570\u5024\u306f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n
_.isObject({});\r\n=> true\r\n_.isObject(1);\r\n=> false<\/pre>\n
isArguments<\/h5>\n
_.isArguments(object)<\/p>\n
object\u304cArguments\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u5834\u5408\u306ftrue\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n
(function(){ return _.isArguments(arguments); })(1, 2, 3);\r\n=> true\r\n_.isArguments([1,2,3]);\r\n=> false<\/pre>\n
isFunction<\/h5>\n
_.isFunction(object)<\/p>\n
object\u304cFunction\u306e\u5834\u5408\u306ftrue\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n
_.isFunction(alert);\r\n=> true<\/pre>\n
isString<\/h5>\n
_.isString(object)<\/p>\n
object\u304cString\u306e\u5834\u5408\u306ftrue\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n
_.isString("moe");\r\n=> true<\/pre>\n
isNumber<\/h5>\n
_.isNumber(object)<\/p>\n
object\u304cNumber\u306e\u5834\u5408\u306ftrue\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n
_.isNumber(8.4 * 5);\r\n=> true<\/pre>\n
isFinite<\/h5>\n
_.isFinite(object)<\/p>\n
object\u304c\u6709\u9650\u6570\u306e\u5834\u5408\u306ftrue\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n
_.isFinite(-101);\r\n=> true\r\n\r\n_.isFinite(-Infinity);\r\n=> false<\/pre>\n
isBoolean<\/h5>\n
_.isBoolean(object)<\/p>\n
object\u304ctrue\u307e\u305f\u306ffalse\u306e\u5834\u5408\u306ftrue\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n
_.isBoolean(null);\r\n=> false<\/pre>\n
isDate<\/h5>\n
_.isDate(object)<\/p>\n
object\u304cDate\u306e\u5834\u5408\u306ftrue\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n
_.isDate(new Date());\r\n=> true<\/pre>\n
isRegExp<\/h5>\n
_.isRegExp(object)<\/p>\n
object\u304cRegExp\u306e\u5834\u5408\u306ftrue\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n
_.isRegExp(\/moe\/);\r\n=> true<\/pre>\n
isNaN<\/h5>\n
_.isNaN(object)<\/p>\n
object\u304cNaN\u306e\u5834\u5408\u306ftrue\u3092\u8fd4\u3057\u307e\u3059\u3002
\n\u6ce8\uff1a\u3053\u308c\u306f\u3001\u30cd\u30a4\u30c6\u30a3\u30d6\u306eisNaN\u95a2\u6570\u3068\u540c\u3058\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3053\u308c\u306f\u3001undefined\u306a\u3069\u306e\u4ed6\u306e\u591a\u304f\u306e\u6570\u5024\u3067\u306f\u306a\u3044\u5024\u306b\u5bfe\u3057\u3066\u3082true\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n
_.isNaN(NaN);\r\n=> true\r\nisNaN(undefined);\r\n=> true\r\n_.isNaN(undefined);\r\n=> false<\/pre>\n
isNull<\/h5>\n
_.isNull(object)<\/p>\n
\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u5024\u304cnull\u306e\u5834\u5408\u306f\u3001true\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n
_.isNull(null);\r\n=> true\r\n_.isNull(undefined);\r\n=> false<\/pre>\n
isUndefined<\/h5>\n
_.isUndefined(value)<\/p>\n
\u5024\u304c\u672a\u5b9a\u7fa9\u306e\u5834\u5408\u306f\u3001true\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n
_.isUndefined(window.missingVariable);\r\n=> true<\/pre>\n","protected":false},"excerpt":{"rendered":"
underscore.js \u5f15\u304d\u7d9a\u304d\u3001underscore.js \u306e Object Functions\u306e\u307e\u3068\u3081\u3068\u306a\u308a\u307e\u3059\u3002 keys _.keys(object) \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u3059\u3079\u3066\u306e\u540d\u524d\u3092\u53d6\u5f97\u3057\u307e\u3059\u3002 _ […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[168,176,166,37,47,179,50,46,178,138,78,114,118],"class_list":["post-4841","post","type-post","status-publish","format-standard","hentry","category-javascript","tag-html","tag-html5","tag-iphone","tag-iphone-","tag-javascript-2","tag-jquery","tag-jquery-mobile","tag-js","tag-178","tag-138","tag-78","tag-114","tag-118"],"_links":{"self":[{"href":"https:\/\/www.webcyou.com\/index.php?rest_route=\/wp\/v2\/posts\/4841","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.webcyou.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.webcyou.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.webcyou.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.webcyou.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4841"}],"version-history":[{"count":5,"href":"https:\/\/www.webcyou.com\/index.php?rest_route=\/wp\/v2\/posts\/4841\/revisions"}],"predecessor-version":[{"id":8258,"href":"https:\/\/www.webcyou.com\/index.php?rest_route=\/wp\/v2\/posts\/4841\/revisions\/8258"}],"wp:attachment":[{"href":"https:\/\/www.webcyou.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4841"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.webcyou.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4841"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.webcyou.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4841"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}