ds-algo-study/DS-n-Algos/ALGO/UNSORTED/DNA Pairing.js

Just experimenting with publishing a package

//The DNA strand is missing the pairing element. Take each character, get its pair, and return the results as a 2d array.Base pairs are a pair of AT and CG. 
function pairing(str){
    var paired = {
        "A":"T",
        "T":"A",
        "G":"C",
        "C":"G"
    }
    return str.split("").map(x => [x, paired[x]])
}
console.log(pairing("ATCGA")) //[["A","T"],["T","A"],["C","G"],["G","C"],["A","T"]]

//OR Using Switch statement
// function pairElement(str) {
//     var empty = [];
//     function search(char) {
//       switch(char){
//         case "A":
//        empty.push(["A","T"]);
//        break
//      case "T":
//        empty.push(["T","A"]);
//        break
//        case "G":
//        empty.push(["G","C"])
//        break
//        case "C":
//        empty.push(["C","G"])
//       }}
//     for(let i=0; i<str.length; i++){
//     search(str[i])
//     }
//     return empty
//     }