Question

我正在编写一个函数，该函数应该使用给定参数替换某个特定位置的特定字符。但是，当我尝试在另一个内部调用该函数时。这是一个家庭作业，我几乎肯定我已经正确地写了循环，但感觉好像我在寻找一些东西。（this.id）.charAt（（this.id）。length - 1）应该获取元素ID的最后一个字母并将其传递给函数。 this.innerHTML旨在获取HTML的内容并将其传递给updateBoardState函数。

function updateBoardState(newMark, squareNumber)
{
    var boardState;
    var loc;
    var winners;

    winners = getWinningCombinations();
    boardState = getBoardState();

    loc = winners.indexOf(squareNumber);window.alert(loc);

    while(loc >= 0)
    {
        replaceCharacterInString(boardState, loc, newMark);
        loc = winners.indexOf(squareNumber);
    }
    setBoardState(boardState);window.alert(setBoardState(boardState));
}

function markTheSquare() // uses the this keyword to concatenate "X" to the inner HTML of the current element.
{

    this.onclick = null; // Disassociates the oncliick function with clicked()
    this.innerHTML = getXorO(); // Concatenates the result of getXorO to the current innherHTML of the element.

    updateBoardState(this.innerHTML, (this.id).charAt((this.id).length - 1));

    setMarkCount(getMarkCount() + 1) // Increment markCount by 1.


}
function replaceCharacterInString(source, where, what)
{
    return source.substring(0, where) + what + source.substring(where + 1, source.length);
}

Answer 1

我的教授打错了。

function updateBoardState(newMark, squareNumber)
{
    var boardState;
    var loc;
    var winners;

    winners = getWinningCombinations();
    boardState = getBoardState();

    loc = winners.indexOf(squareNumber);window.alert(loc);

    while(loc >= 0)
    {
        boardState = replaceCharacterInString(boardState, loc, newMark);
        loc = boardState.indexOf(squareNumber);
    }
    setBoardState(boardState);window.alert(setBoardState(boardState));
}

传递innerHTML和（this.id）时循环不会终止

1 个答案: