Code example 9-1const getCost = (price, quantity) => { try…
Code example 9-1const getCost = (price, quantity) => { try { const cost = price * quantity; if (isNaN(cost)) { throw new Error(); } return cost.toFixed(2); } catch(e) { console.log(e.name + “: ” + e.message) }}; Refer to code example 9-1. Which of the following would be the best way to improve this function so it doesn’t stop the app during runtime?
Read DetailsCode example 11-2const sightings = [[“Fri”, “Dolphin”, “blue…
Code example 11-2const sightings = [[“Fri”, “Dolphin”, “blue Whale”], [“Sat”, “Fin Whale”], [“Sun”, “Blue Whale”, “Dolphin”, “sea lion”], [“Mon”, “Orca”, “dolphin”, “Dolphin”]]; If code example 11-2 was coded as follows instead, which of these statements would return the sightings array converted to a one-dimensional array?const sightings = [[“Fri”, [“Dolphin”, “blue Whale”]], [“Sat”, [“Fin Whale”]], [“Sun”, [“Blue Whale”, “Dolphin”, “sea lion”]], [“Mon”, [“Orca”, “dolphin”, “Dolphin”]]];
Read DetailsCode example 11-2const sightings = [[“Fri”, “Dolphin”, “blue…
Code example 11-2const sightings = [[“Fri”, “Dolphin”, “blue Whale”], [“Sat”, “Fin Whale”], [“Sun”, “Blue Whale”, “Dolphin”, “sea lion”], [“Mon”, “Orca”, “dolphin”, “Dolphin”]]; Refer to code example 11-2. What is printed to the console after running the following statements?const sightingsCopy = sightings;sightingsCopy[1] = [“Tue”, “Sea Turtle”, “Mola Mola”];console.log(sightings[1][1] + ” ” + sightingsCopy[1][1]);
Read DetailsCode Example 8-1The JavaScript:1 const getElement = select…
Code Example 8-1The JavaScript:1 const getElement = selector => document.querySelector(selector);2 3 let timer = null;4 let count = 10;56 const updateCounter = () => {7 getElement(“#counter”).firstChild.nodeValue = count;8 if (count {16 updateCounter();17 timer = setInterval(updateCounter, 1000);18 });The HTML:Countdown: Starting… Refer to code example 8-1. The timer in this code will update the counter…
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