How to use is-blob - 2 common examples
To help you get started, we’ve selected a few is-blob examples, based on popular ways it is used in public projects.
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fengyuanchen / compressorjs / src / index.js View on Github 
init() {
const { file, options } = this;
if (!isBlob(file)) {
this.fail(new Error('The first argument must be a File or Blob object.'));
return;
}
const mimeType = file.type;
if (!isImageType(mimeType)) {
this.fail(new Error('The first argument must be an image File or Blob object.'));
return;
}
if (!URL || !FileReader) {
this.fail(new Error('The current browser does not support image compression.'));
return;
}return new Promise((resolve, reject) => {
if (!isBlob(file)) {
reject(new Error('The first argument must be a File or Blob object.'));
return;
}
const mimeType = file.type;
if (!isImageType(mimeType)) {
reject(new Error('The first argument must be an image File or Blob object.'));
return;
}
if (!URL && !FileReader) {
reject(new Error('The current browser does not support image compression.'));
return;
}
