javascript-objects

问题 I am new to dialogflow fulfillment and I am trying to retrieve news from news API based on user questions. I followed documentation provided by news API, but I am not able to catch any responses from the search results, when I run the function in console it is not errors. I changed the code and it looks like now it is reaching to the newsapi endpoint but it is not fetching any results. I am utilizing https://newsapi.org/docs/client-libraries/node-js to make a request to search everything

问题 I have an array of existing object defined with JSON. The objects are obviously of the Object type. How do I associate them with a custom object type to give them specific functionality? 回答1: The way that'll work in all browsers is to either augment each item in the array with the properties and methods you want, or pass the object to a constructor and create a new object based on the old object's properties and methods. Or if you don't care about IE: var obj = { name : "Jeremy" }; function

问题 So I have an array of objects like so: [ { name: "Joe Smith", job: "Janitor", age: 35, id: "3421" }, { name: "George Henderson", job: "CEO", age: 43, id: "5098" }, { name: "Joe Smith", job: "Cook", age: 35, id: "3421" }, { name: "Sam Doe", job: "Technician", age: 22, id: "1538" }, { name: "Joe Smith", job: "Dishwasher", age: 35, id: "3421" } ] As you can see, Joe Smith has three jobs. What I want to do is to combine all of his jobs into one object like so: { name: "Joe Smith", job: "Janitor,

问题 I have an object like so: { green: 2, blue: 1, red: 2} How can I turn it into an array that looks like this: [ 'green', 'green', 'blue', 'red', 'red'] 回答1: Could be done like this: Object.entries(obj).flatMap(([k, v]) => Array(v).fill(k)); Example: const obj = { green: 2, blue: 1, red: 2}; const res = Object.entries(obj).flatMap(([k, v]) => Array(v).fill(k)); console.log(res); 回答2: This is a neat way with a generator. Perhaps a little overkill for this example. function* makeIterator(obj) {

问题 I have this list in my front-end typescript file: poMonths: 0: {id: 1, companyName: "company14", companyId: 14, flActive: true, purchaseMonth: "2019-12-15T00:00:00", purchaseMonthString: "Dec-2019" , year: 2019, month: "December"} 1: {id: 2, companyName: "company5", companyId: 5, flActive: true, purchaseMonth: "2019-12-15T00:00:00", …} 2: {id: 3, companyName: "company13", companyId: 13, flActive: true, purchaseMonth: "2019-11-15T00:00:00", …} 3: {id: 4, companyName: "company14", companyId: 14

问题 I've created an array of 2 objects, and I wish to write an 'add' function to dynamically add more people to this array. Can you explain why the 'add' function below does not add an object to the 'contacts' array successfully. var bob = { firstName: "Bob", lastName: "Jones", phoneNumber: "(650) 777-7777", email: "bob.jones@example.com" }; var mary = { firstName: "Mary", lastName: "Johnson", phoneNumber: "(650) 888-8888", email: "mary.johnson@example.com" }; var contacts = [bob, mary]; var

问题 Recently I had asked a question Extract & call JavaScript function defined in the onclick HTML attribute of an element(using jQuery attr/prop) I needed to programmatically access the onclick attrib of a button which had a function call along with param's in it then supply an extra param & make a function call( onclick=doSomething(2,4) ). But as I figure out that the use of apply/call can also come handy to supply extra param's.For this I extracted the the function name from the attribute & it

问题 Given a JavaScript object, how can I convert it into an array of objects (each with key, value)? Example: var data = { firstName: 'John', lastName: 'Doe', email: 'john.doe@gmail.com' } resulting like: [ { key: 'firstName', value: 'John' }, { key: 'lastName', value: 'Doe' }, { key: 'email', value: 'john.doe@gmail.com' } ] 回答1: var data = { firstName: 'John', lastName: 'Doe', email: 'john.doe@gmail.com' } var output = Object.entries(data).map(([key, value]) => ({key,value})); console.log(output

问题 Javascript is not my first language of choice, nor is it one I am all that well versed in. Functional stuff fine, objects, not so much. I am looking to see if anyone can suggest options for dealing with the following scenario. function postcodeEntry(destination,postcode) { "use strict"; document.getElementById('googlemappostcode').innerHTML = <?php if ($_GET['page']==="fun") echo "<div id=\"map\"></div>' + ";?>'<form id="postcodeEntry" method="post" action="/" onsubmit="calcRoute(\'driving\'

问题 Javascript is not my first language of choice, nor is it one I am all that well versed in. Functional stuff fine, objects, not so much. I am looking to see if anyone can suggest options for dealing with the following scenario. function postcodeEntry(destination,postcode) { "use strict"; document.getElementById('googlemappostcode').innerHTML = <?php if ($_GET['page']==="fun") echo "<div id=\"map\"></div>' + ";?>'<form id="postcodeEntry" method="post" action="/" onsubmit="calcRoute(\'driving\'