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75 lines
1.9 KiB
75 lines
1.9 KiB
console.log(countries)
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// alert('Open the browser console whenever you work on JavaScript')
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// alert('Open the console and check if the countries has been loaded')
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// number 1
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const emptyArray0 = []
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// number 2
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const arryFiveElements = [1, 2, 3, 4, 5]
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// number 3
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console.log(arryFiveElements.length) // 5
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// number 4
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console.log(arryFiveElements[0])
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console.log(arryFiveElements[2])
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console.log(arryFiveElements.length - 1)
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// number 5
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const mixedDataType = [1, 23, 34, 'fruit', 'rice', 'beans', true, false, false, false, false]
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console.log(mixedDataType.length)
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// number 6
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const itCompanies = ['Facebook', 'Google', 'Microsoft', 'Apple', 'IBM', 'Oracle','Amazon']
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// number 7
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console.table(itCompanies)
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// number 8
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console.log(itCompanies.length)
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// number 9
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console.table(itCompanies[0])
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console.table(itCompanies[2])
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console.table(itCompanies[6])
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// number 10
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console.table(itCompanies[0])
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console.table(itCompanies[1])
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console.table(itCompanies[2])
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console.table(itCompanies[3])
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console.table(itCompanies[4])
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console.table(itCompanies[5])
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console.table(itCompanies[6])
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// number 11
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const upper0 = itCompanies[0].toUpperCase()
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const upper1 = itCompanies[1].toUpperCase()
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const upper2 = itCompanies[2].toUpperCase()
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const upper3 = itCompanies[3].toUpperCase()
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const upper4 = itCompanies[4].toUpperCase()
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const upper5 = itCompanies[5].toUpperCase()
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const upper6 = itCompanies[6].toUpperCase()
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console.log(upper0)
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console.log(upper1)
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console.log(upper2)
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console.log(upper3)
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console.log(upper4)
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console.log(upper5)
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console.log(upper6)
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// number 12
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console.log(`${itCompanies[0]} , ${itCompanies[1]} , ${itCompanies[2]} , ${itCompanies[3]} , ${itCompanies[4]} , ${itCompanies[5]} and ${itCompanies[6]} are big IT companies`)
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// number 13
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const exist = itCompanies.includes('Facebook')
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if (exist == true) {
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console.log(itCompanies[0])
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}else{
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console.log('comany not found')
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}
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// number 14
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