following code in the blog app. What event(s) will cause the getBlogPosts() function to run? useEffect(() => { getBlogPosts() const listener = navig
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Consider the following code in the blog app. What event(s) will cause the getBlogPosts() function to run?
useEffect(() => {
getBlogPosts()
const listener = navigation.addListener('didFocus', () => {
getBlogPosts()
})
return () => {
listener.remove()
}
}, [])
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- Using comments within the code itself, can you provide an line by line explanation of the below JavaScript file? The file itself deals with WebGl and if that helps you. Please and thank you JavaScript file: function mat2() { var out = new Array(2); out[0] = new Array(2); out[1] = new Array(2); switch ( arguments.length ) { case 0: out[0][0]=out[3]=1.0; out[1]=out[2]=0.0; break; case 1: if(arguments[0].type == 'mat2') { out[0][0] = arguments[0][0][0]; out[0][1] = arguments[0][0][1]; out[1][0] = arguments[0][1][0]; out[1][1] = arguments[0][1][1]; break; } case 4: out[0][0] = arguments[0]; out[0][1] = arguments[1]; out[1][0] = arguments[2]; out[1][1] = arguments[3]; break; default: throw "mat2: wrong arguments"; } out.type = 'mat2'; return out; } //---------------------------------------------------------------------------- function mat3() { // v = _argumentsToArray( arguments ); var out = new Array(3); out[0] = new Array(3); out[1] = new Array(3); out[2] = new Array(3);…In JAVA, use a HashMap to count and store the frequency counts for all the words from a large text document. Using file util, please. Then, display the contents of this HashMap with words and frequency count. Next, please create a set view of the Map and store the contents in an array. Sort this array based on key value and display it. Finally, sort the array in decreasing order by frequency and display it as well. Please label your explanation in the code Thank youUsing comments within the code itself, can you provide an line by line explanation of the below JavaScript file? The file itself deals with WebGl and if that helps you. Please and thank you JavaScript file: function MVbuffer(size) { var b = {}; b.buf = new Float32Array(size); b.index = 0; b.push = function(x) { for(var i=0; i<x.length; i++) { b.buf[b.index+i] = x[i]; } b.index += x.length; b.type = ''; } return b; } function isVector(v) { if(v.type == "vec2" || v.type == "vec3" || v.type == "vec4") return true; return false; } function isMatrix(v) { if(v.type == "mat2" || v.type == "mat3" || v.type == "mat4") return true; return false; } function radians( degrees ) { return degrees * Math.PI / 180.0; } //---------------------------------------------------------------------------- function patch() { var out = new Array(4); for(var i = 0; i< 4; i++) out[i] = new Array(4); out.type = "patch"; return out; } function curve() { var out = new Array(4); out.type = "curve";…
- Suppose you have used the following JavaScript code to define cookies for a web page:document.cookie = "userName=Robertson;path=/partyTime;secure";document.cookie = "cakeFlavor=carrot;path=/partyTime;secure";document.cookie = "theme=Pirates;path=/partyTime;secure";When you want to retrieve the field names and values stored in the document.cookie object using JavaScript, what should you do first? a. Iterate over thedocument.cookieobject, saving each name and value as a separate array element. b. Call the methoddocument.cookie.split("; "), creating an array ofname=valuepairs for each stored cookie. c. Apply thedecodeURIComponent()method to thedocument.cookieobject to extract the names and values, saving the result to an array. d. Use theslice()method to produce a substring containing only thename=valuepairs by removing thepathandsecureattributes from the cookie’s text string.Need it asap please !!! Will rate your answer!!! Run the following Java code and explain what it does. Give the resulting image from the code using inputs 3,960 1,234 222,222 13,780 interface ArrayStackADT{public void pop();public void push(Object a);public void display();public boolean isEmptyStack();public boolean isFullStack(); } class ArrayStackDataStrucClass<T> implements ArrayStackADT{// An object of type T is declaredfinal static int n=100;T stack[];int top=-1; // Default constructorArrayStackDataStrucClass() {this.stack = (T[]) new Integer[100];}//Overloaded ConstructorArrayStackDataStrucClass(T obj[]) {this.stack = obj;} @Overridepublic void push(Object obj){T t1= (T) obj;try{if(!isFullStack()){stack[++top]=t1;}}catch(Exception e){System.out.println("e");}} @Overridepublic void pop(){T popper = null;if(top<0){System.out.println("Stack underflow");return;}else{popper=stack[top];top--;//System.out.println("Popped element:" +popper);} } @Overridepublic void…To restrict access to parts of a Web application, we use access filters. What does not describe access filters and how they work in our application framework?a) Filters are classes declared as attributesb) Filters are run after accessing the filtered class/methodc) Filters can be applied as attributes on classes and methodsd) Filters are discovered at the time of routing by using ReflectionClass objects.
- Imagine that you’ve written a JavaScript constructor for a custom clownfish object with a position property and then added the following statements: clownfish.prototype.swimForward = function(distanceInCm) { this.position += distanceInCm; }; Now you would like to apply the swimForward() method to a similar custom object called lionfish. What statement(s) could you use to do this? a. You can call theswimForward()method only on objects of theclownfishclass because it is a private method. b. let spikey = new clownfish(); lionfish.prototype.swimForward.call(spikey, 50); c. let spikey = new lionfish(); clownfish.prototype.swimForward.apply(spikey, 50); d. let spikey = new lionfish(); clownfish.prototype.swimForward.call(spikey, 50); Implement the ShoppingCart and Product class with necessary properties so that the given output is produced. Do not change any given code.s1 = ShoppingCart()p1 = Product("Razer BlackShark","Headset",99.99,5)p2 = Product.createProduct("Razer Huntsman","Keyboard",249.99,12)print("1.====================================")s1.addGadget(p1,p2)print("2.====================================")s1.setCartName("Amazon")s1.addGadget(p1,p2)s1.addGadget(Product("HyperX Fury","Mousepad",26.99,21))print("3.====================================")print("Total Products created:",Product.totalProducts)print("4.====================================")s1.printCartDetails()print("5.====================================")s1.removeFromCart("Logitech G ProX Superlight")print("6.====================================")s1.removeFromCart("Razer Huntsman")print("7.====================================")s1.printCartDetails()Output:1.====================================Please set the cart name…Write an application that displays a JFrame containing the opening sentence from A Christmas Carol. Add a button to the frame in the JBookQuote program. When the user clicks the button, display the title of the book that contains the quote in the available JLabel using the setText() method. import javax.swing.*; import java.awt.*; import java.awt.event.*; public class JBookQuote2 extends JFrame implements ActionListener { FlowLayout flow = new FlowLayout(); JLabel msg1 = new JLabel("To begin with,"); JLabel msg2 = new JLabel("Marley was dead."); JButton button = new JButton("Click for source"); JLabel msg3 = new JLabel("** A Christmas Carol **"); public JBookQuote2() { // Write your code here } @Override public void actionPerformed(ActionEvent e) { // Write your code here } public static void main(String[] args) { JBookQuote2 aFrame = new JBookQuote2(); aFrame.setSize(260, 150);…
- [JAVA] Please provide comments to my code import java.util.HashMap;public class Items {private final HashMap<String, Integer> allWeapons = setHash("weapon");private final HashMap<String, Integer> allArmor = setHash("armor");private final HashMap<String, Integer> allConsumables = setHash("consumable");public String type;public String name;public int modifier;public Items(String type) {randomItem(type);}public Items(String type, String name) {switch (type) {case "weapon":if (allWeapons.containsKey(name)) {this.type = "weapon";this.name = name;this.modifier = allWeapons.get(name);} else {randomItem(type);}break;case "armor":if (allArmor.containsKey(name)) {this.type = "armor";this.name = name;this.modifier = allArmor.get(name);} else {randomItem(type);}break;case "consumable":if (allConsumables.containsKey(name)) {this.type = "consumable";this.name = name;this.modifier = allConsumables.get(name);} else {randomItem(type);}break;default:randomItem(type);break;}}private…In netlogo, how would you write this as a code: make a turtle randomly face North, south, east or west? create buttons labeled "Turtle" or "yellow" and be able to write (to turtle or to yellow) codes in the code section without receiving the error "There is already a primitive reporter called Turtle or yellow"?In JAVA, use a HashMap to count and store the frequency counts for all the words from a large text document. Then, display the contents of this HashMap with given words and their frequency in the document. Next, please create a set view of the Map and store the contents in an array. Sort this array based on key value and display it. Finally, sort the array in decreasing order by frequency and display it.