Swapping consecutive/adjacent characters of a string in JavaScript-CodePudding

Example string: astnbodei, the actual string must be santobedi. Here, my system starts reading a pair of two characters from the left side of a string, LSB first and then the MSB of the character pair. Therefore, santobedi is received as astnbodei. The strings can be a combination of letters and numbers and even/odd lengths of characters.

My attempt so far:

var attributes_ = [Name, Code,
    Firmware, Serial_Number, Label
]; //the elements of 'attributes' are the strings
var attributes = [];

for (var i = 0; i < attributes_.length; i  ) {
    attributes.push(swap(attributes_[i].replace(/\0/g, '').split('')));
}

function swap(array_attributes) {
    var tmpArr = array_attributes;
    for (var k = 0; k < tmpArr.length; k  = 2) {
        do {
            var tmp = tmpArr[k];
            tmpArr[k] = tmpArr[k 1]
            tmpArr[k 1] = tmp;
        } while (tmpArr[k   2] != null);
    }
    return tmpArr;
}

msg.Name = attributes; //its to check the code

return {msg: msg, metadata: metadata,msgType: msgType}; //its the part of system code

While running above code snippet, I received the following error:

Can't compile script: javax.script.ScriptException: :36:14 Expected : but found ( return {__if(); ^ in at line number 36 at column number 14

I'm not sure what the error says. Is my approach correct? Is there a direct way to do it?

CodePudding user response：

Did you try going through the array in pairs and swapping using ES6 syntax?

You can swap variables like this in ES6: [a, b] = [b, a]

CodePudding user response：

Below is one way to do it. The code you have is not valid because return is not allowed outside a function.

let string = "astnbodei";
let myArray = string.split('');
let outputArray = [];

for (i=0; i<myArray.length; i=i 2) {
    outputArray.push(myArray[i 1]);
  outputArray.push(myArray[i]);
}

console.log(outputArray.join(''));