| function pair(str) { | |
| var basePair1 = "AT"; | |
| var basePair2 = "CG"; | |
| var inputArr = str.split(""); | |
| var tmpArr = []; | |
| var outputArr = []; | |
| for (var i=0;i<inputArr.length;i++){ | |
| tmpArr.push(inputArr[i]); | |
| if ((inputArr[i].indexOf(basePair1[0])>-1)||(inputArr[i].indexOf(basePair1[1])>-1)){ | |
| for (var j=0;j<basePair1.length;j++){ | |
| if (basePair1[j] != inputArr[i]){ | |
| tmpArr.push(basePair1[j]); | |
| } | |
| } | |
| } | |
| if ((inputArr[i].indexOf(basePair2[0])>-1)||(inputArr[i].indexOf(basePair2[1])>-1)){ | |
| for (var k=0;k<basePair2.length;k++){ | |
| if (basePair2[k] != inputArr[i]){ | |
| tmpArr.push(basePair2[k]); | |
| } | |
| } | |
| } | |
| outputArr.push(tmpArr); | |
| tmpArr = []; | |
| } | |
| return outputArr; | |
| } | |
| pair("GCG"); |
The DNA strand is missing the pairing element. Each character gets its pair, and returns to the results as a 2d array. Base pairs are a pair of AT and CG. For example, for the input GCG, return [["G", "C"], ["C","G"],["G", "C"]] The character and its pair are paired up in an array, and all the arrays are grouped into one encapsulating array.
A script by V.