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我正在嘗試創建一個函數來停止查找下一張幻燈片,並且也不會給我一條錯誤消息,指出找不到資產。如何用其他功能停止功能?
我在我的文件夾中有6個資產。
避免錯誤:
GET file:///Users/ferfas/Desktop/1.33_1024x768/initialFrames/frame_7.jpg net::ERR_FILE_NOT_FOUND
代碼:
var pictureIndex = 1;
var baseUrl = "initialFrames/";
var image_url = undefined;
var timer = setInterval(next, 2500);
var newImage = new Image();
newImage.onload = imageFound;
newImage.onerror = imageNotFound;
function next()
{
image_url = baseUrl + 'frame_' + pictureIndex + '.jpg';
tryLoadImage(image_url);
}
function tryLoadImage(url) {
newImage.src=url;
}
function imageFound() {
document.getElementById("backInit").src = image_url;
pictureIndex++;
}
function imageNotFound() {
// perform some function to stop calling next()
clearInterval(timer);
}