I never could finish studying neither practicing #69
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| * returns { 99: 2, 11: 1, 12: 1, 13: 1, 58: 1 } | ||
| */ | ||
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| function countNumbers() { |
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This function should take in a parameter as indicated on line 5. So, we need to be mindful to include the parameter in the parenthesis of the function.
| let countNumbers = { }; | ||
| for (let i = 0; i < arr.length; i++) { | ||
| value = arr[i] | ||
| if (typeof countNumbers[value] === "undefined") { |
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Do we need to use typeof to figure out if a key/value pair exists in an object?
| countryPopulations.sort(function (a, b) { | ||
| return b.population - a.population; | ||
| //should return ['China', 'Egypt', 'Denmark'] only from the object??????!!! | ||
| }); |
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This is a great start! Which array method can we chain here that will allow us to return an array with just the information we need?
| */ | ||
| let n = 4; | ||
| function isOdd(n){ | ||
| if(n %2 === 1){ |
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Do we need an if-else statement here? Explore implicit return.
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