kodadot/nft-gallery

export const preloadImage = (src: string): Promise<boolean> => {
  return new Promise((resolve, reject) => {
    const image = new Image()
    image.src = src

    const onLoad = () => {
      resolve(true)
    }

    image.addEventListener('load', onLoad, true)
    image.removeEventListener('load', onLoad)
    image.addEventListener('error', (e) => {
      reject(e)
    })
  })
}