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nabettu/checkImageExist.js

Created May 7, 2018 14:20
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画像あるかな関数
Raw
checkImageExist.js
checkImageExist(imageSrc) {
return new Promise((resolve, reject) => {
var img = new Image();
img.onload = () => {
resolve(imageSrc);
};
img.onerror = () => {
reject(new Error("404"));
};
img.src = imageSrc;
});
},
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