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 vote117 views1 answer
The softness of a spot lights edge is controlled by penumbra angle, value gives perfect hard edge:
TypeScript
0 vote115 views1 answer
How to find uncommon elements in two lists in python
TypeScript
0 vote72 views4 answers
Error: The method assertThat(T, Matcher<? super T>) in the type MatcherAssert is not applicable for the arguments (List<String>, Matcher<Iterable<Integer>>)
TypeScript
12 votes120 views4 answers
Whats sql
TypeScript
3 votes128 views1 answer
Whats the binary nmber system
TypeScript
2 votes117 views2 answers
Nodejs aws s3 upload
TypeScript
1 vote106 views1 answer
Typescript json.parse
TypeScript
7 votes117 views2 answers
Conditional inline style angular
TypeScript
2 votes112 views1 answer
Typescript sum all array values
TypeScript
0 vote119 views1 answer
Deleting a generated lib in nx
TypeScript