const json = { "key1": "value1", "key2": "value2", "key3": "value3", "key4": "value4" }; const keysToFilter = ["key2", "key4"]; const filteredKeys = Object.keys(json).filter(key => keysToFilter.includes(key)); const filteredJson = filteredKeys.reduce((obj, k...
"x-apikey": " I entered my api key here" } }; request(options, function (error, response, body) { if (error) throw new Error(error); var filter1 = JSON.parse(body); console.log(filter1.tokenjson); }); 我的json文件是: { "center": { "tokenjson": "my value here" } } 因...
JSONObject.other.forEach((item) => { console.log(item); }); 结果: 2、map()函数、filter()函数 2.1 对象 1 2 3 4 5 6 7 8 9 10 11 // map()函数遍历JSON对象属性并返回新数组 const mapArray = Object.keys(JSONObject).map((key) => { returnkey +": "+ JSONObject[key]; }); c...
const jsonString = JSON.stringify(jsonObject); console.log(jsonString);// 输出:{"name":"滔Roy","date":“2023.04.14”,"other":[12,"TaoRoy",null,true]} // 使用replacer参数过滤掉other属性 const jsonString2 = JSON.stringify(jsonObject, ["name","date"]); console.log(jsonString2); //...
JSON是JavaScript对象的一种简单紧凑的标签,使用JSON时,对象可以简单的转换为字符串来进行存储和转换。 概念 示例 将JSON字符串转化为对象 方法1: var myObject = eval('(' + jsonObjectString + ')'); 方法2(在浏览器支持时):JSON.parse(xxx); 将对象序列化为JSON字符串 var obj = new Object();obj...
{filterOn: Excel.FilterOn.values,values: ["Restaurant","Groceries"] });// Queue a command to apply a filter on the Amount column.letamountFilter = expensesTable.columns.getItem("Amount").filter; amountFilter.apply({filterOn: Excel.FilterOn.dynamic,dynamicCriteria: Excel.DynamicFilterCriteria....
Specify `ast` or `spidermonkey` to write Terser or SpiderMonkey AST as JSON to STDOUT respectively. --comments [filter] Preserve copyright comments in the output. By default this works like Google Closure, keeping JSDoc-style comments that contain e.g. "@license", or start with "!". You...
name.localeCompare(rhs. name); }); // Filter by age (adults only) window.filteredPeople = people. createFiltered(function (p) { return p.age > 17; }); 我們可以通過調用 createSorted 方法,傳遞排序函數,在繫結欄位表進行排序或篩選通過調用 createFiltered 方法,傳遞函數中進行篩選。 調用一個人...
$ ./node_modules/mocha/bin/mocha Array #indexOf() ✓ should return -1 when the value is not present 1 passing (9ms) 在package.json 文件中设置 test 脚本: "scripts": { "test": "mocha" } 然后运行: $ npm test # Run Cycle Overview A brief outline on the order Mocha's compon...
JSON中对象通过“{}”来标识,一个“{}”代表一个对象,如{“AreaId”:”123”},对象的值是键值对的形式(key:value)。JSON是JS的一个严格的子集,一种轻量级的数据交换格式,类似于xml。数据格式简单,易于读写,占用带宽小。 两个函数: JSON.parse(str) ...