questions.js

const stringSize = (text) => {
    return text.length;

}
const replaceCharacterE = (text) => {
   
    return  text.replace('e', ' ');
}
const concatString = (text1, text2) => {
    return text1.concat(text2);
}
const showChar5 = (text) => {
     return  text.charAt(4); 
}
const showChar9 = (text) => {
    return  text.slice(0, 9); 

}
const toCapitals = (text) => {
    return text.toUpperCase();

}
const toLowerCase = (text) => {
    return text.toLowerCase();
}
const removeSpaces = (text) => {
    return text.trim();
}
const IsString = (text) => {
    console.log(typeof text); 
    if(typeof text=== 'string')
    {
       
        return true;
    }
    
    else{
        return false;
    }
}

const getExtension = (text) => {
    return text.split(".").pop();

}
const countSpaces = (text) => {
    return text.split(' ').length - 1;

}
const InverseString = (text) => {
    return text.split("").reverse().join("");

}

const power = (x, y) => {
    return Math.pow(x,y);

}
const absoluteValue = (num) => {
    return Math.abs(num);

}
const absoluteValueArray = (array) => {
     return array.map(Math.abs);
}
const circleSurface = (radius) => {
     return Math.round(Math.PI*radius*radius);
}
const hypothenuse = (ab, ac) => {
    return Math.hypot(ab,ac);
}
const BMI = (weight, height) => {
    return parseFloat((weight/(height*height)).toFixed(2));
}

const createLanguagesArray = () => {
    const languages=["Html","CSS","Java","PHP"];
    return languages;
}

const createNumbersArray = () => {
    const numbers=[0,1,2,3,4,5];
    return numbers;
}

const replaceElement = (languages) => {
      languages[2]="Javascript";
      return languages;

}

const addElement = (languages) => {
    languages.push("Ruby","Python");
    return languages;
}

const addNumberElement = (numbers) => {
     numbers.unshift(-2,-1);
     return numbers;
}

const removeFirst = (languages) => {
   languages.shift();
   return languages;
}

const removeLast = (languages) => {
  languages.pop();
  return languages;
}

const convertStrToArr = (social_arr) => {
      const tableau=social_arr.split(",");
      return tableau;

}

const convertArrToStr = (languages) => {
   const str=languages.join();
   return str;
}

const sortArr = (social_arr) => {
   social_arr.sort();
   return social_arr;
}

const invertArr = (social_arr) => {
   
     social_arr.reverse();
     return social_arr;
   
}