Shulou(Shulou.com)06/01 Report--

This "web front-end interview common algorithm questions what are the knowledge points of this article, most people do not understand, so the editor summarized the following content, detailed, clear steps, with a certain reference value, I hope you can get something after reading this article, let's take a look at this" web front-end interview common algorithm questions what are the article "it.

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

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.