Frank Benevento - Javascript II#381
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| // ==== Challenge 4: Use .reduce() ==== | ||
| // The donations need to be tallied up and reported for tax purposes. Add up all the donations into a ticketPriceTotal array and log the result | ||
| let ticketPriceTotal = []; | ||
| ticketPriceTotal = runners.reduce((acc,value) =>{return acc +value.donation},0) |
| { return accumulator = accumulator} | ||
| },'') | ||
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| console.log(longestEmail) |
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| function getLength(arr, cb) { | ||
| return(cb(arr.length)); |
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you would actually pass the entire array into the call back here, like this:
function getLength(arr, cb) {
console.log(cb(arr));
}
| multiplyNums(2,3,function(element){console.log(element)}) | ||
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| function contains(item, list, cb) { | ||
| cb(list.includes(item)) |
| }; | ||
| let newCounter = counter(); | ||
| console.log(newCounter()); | ||
| console.log(newCounter()); |
| let myFunction = ()=>{}; | ||
| // let myFunction = function () {}; | ||
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| let anotherFunction = param => {return param}; |
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with arrow syntax, if it's all on the same line, you don't need to say return
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| // exampleArray = [1,2,3,4]; | ||
| let exampleArray = [1,2,3,4]; | ||
| const triple = exampleArray.map(num => {return num * 3}) |
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