JavaScript Arrays

arrays.js

//Write the function camelize(str) that changes dash-separated words like “my-short-string” into camel-cased “myShortString”.

//That is: removes all dashes, each word after dash becomes uppercased.

function toCamelCase(str){
 return str.split("-").map((item,index)=> index===0 ? item : item[0).toUpperCase()+item.slice(1)).join(); 
}

//Write a function filterRange(arr, a, b) that gets an array arr, looks for elements with values higher or equal to a and lower or equal to b and return a result as an array.

const result=(
  function filterRange(arr,a,b){
  const result= arr.filter((item,index)=> item>=a &&item <= b)

 return result
  }
)([5,63,2,1], 3, 62);
console.log(result)

//Write a function filterRangeInPlace(arr, a, b) that gets an array arr and removes from it all values except those that are between a and b. The test is: a ≤ arr[i] ≤ b.

//The function should only modify the array. It should not return anything.

const result=(
  function filterRange(arr,a,b){
   
   arr.forEach(item=>{
     if(!(item>=a && item<=b)){
       arr.splice(arr.indexOf(item),1)
     }
   })

 return arr
  }
)([5, 3, 8, 1], 1, 4);
console.log(result)

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