What are the common algorithm questions for web front-end interview?
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1 object to an array
The format of varobj= {0length', 1obj', 2obj', 3var_slice= 'mother', length:4} / / must be similar to that of an array (the key value is the index and has the length attribute) var_slice= [] .slice; varobjArr=_slice.call (obj)
two。 Count the most letters in a string
FunctioncountMost (str) {constobjCount= {}
Str=str.split ('). Sort (). Join ('); for (leti=0;imaxValue) {
MaxStr= []
MaxStr.push (p)
MaxValue=objCount [p]
} elseif (objCount [p] = = maxValue) {
MaxStr.push (p)
}
} returnmaxStr.length==1?maxStr [0]: maxStr
} console.log (countMost ('afjghdfffffraaaasdddddenas'))
3. Find out the maximum difference of the following positive arrays
Constarr= [10, 5, 11, 7, 8, 9]; functiongetMaxProfit (arr) {letmax=arr [0]
Min=arr [0]; for (leti=1;i
