59 lines
1.0 KiB
JavaScript
59 lines
1.0 KiB
JavaScript
const add = function(num1, num2) {
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return (num1 + num2);
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};
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const subtract = function(num1, num2) {
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return (num1 - num2);
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};
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const sum = function(array1) {
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var mySum = 0;
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for (var i = 0; i < array1.length; i++) {
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mySum = mySum + array1[i];
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}
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return mySum;
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};
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const multiply = function(...nums) {
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var myNum = 1;
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for (var num in nums) {
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//console.log(`total: ${myNum}, index: ${num}, value: ${nums[num]}, is number ${typeof myNum}`);
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myNum = myNum * nums[num];
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}
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return myNum;
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};
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const power = function(num1, num2) {
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return (num1 ** num2);
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};
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const factorial = function(num1) {
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var myArray = [];
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if (num1 === 0){
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myVar = 1;
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} else {
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for (var i = num1; i >= 1; i--){
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myArray.push(i);
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}
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myVar = num1;
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for (num of myArray) {
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if (num === 1) {break};
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myVar *= num-1;
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}
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}
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return myVar;
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};
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var test1 = factorial(0);
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console.log(test1);
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// Do not edit below this line
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module.exports = {
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add,
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subtract,
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sum,
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multiply,
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power,
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factorial
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};
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