File reader with promise

export const fileReader = (file: File) => {
    const reader = new FileReader();

    if(!file) return;

    return new Promise((resolve, reject) => {
        reader.onerror = () => {
            reader.abort();
            reject(new DOMException("Problem parsing input file."));
        }

        reader.readAsDataURL(file);
        reader.onload = (e) => {
            resolve(e.target?.result);
        }
    })
}

Similar codes

0 vote224 views2 answers
How to see constraints in postgresql
TypeScript
0 vote225 views1 answer
What is hello world in typescript
TypeScript
0 vote226 views1 answer
Outputs i angular
TypeScript
1 vote207 views1 answer
Typescript add comments to interface prop[
TypeScript
-2 votes215 views1 answer
Typescript operate with html objects
TypeScript
1 vote249 views1 answer
Js create batches from array
TypeScript
0 vote240 views1 answer
<edit-config> changes in this plugin conflicts with <edit-config> changes in config.xml. Conflicts must be resolved before plugin can be added
TypeScript
2 votes213 views2 answers
Typescript convert numer to string
TypeScript
0 vote222 views1 answer
Get enum key typescript
TypeScript
0 vote213 views2 answers
Get string in brackets python
TypeScript