@appsemble/utils/miscellaneous.js

Utility functions used in Appsemble internally

/**
 * Return the input data.
 *
 * @param data The data to return.
 * @returns The input data.
 */
export function identity(data) {
    return data;
}
/**
 * Throw the input data.
 *
 * @param data The data to throw.
 * @throws The input data.
 */
export function rethrow(data) {
    throw data;
}
/**
 * Strip all null, undefined, and empty array values from an object.
 *
 * @param value The value to strip.
 * @param options Additional options for stripping null values.
 * @returns A copy of the input, but with all nullish values removed recursively.
 */
export function stripNullValues(value, { depth = Number.POSITIVE_INFINITY, ...options } = {}) {
    if (value == null) {
        return;
    }
    if (typeof value !== 'object') {
        return value;
    }
    if (value instanceof Blob) {
        return value;
    }
    if (depth <= 0) {
        return value;
    }
    if (Array.isArray(value)) {
        const result = [];
        for (const val of value) {
            if (val != null) {
                result.push(stripNullValues(val, { depth: depth - 1, ...options }));
            }
        }
        return result;
    }
    const result = {};
    for (const [key, val] of Object.entries(value)) {
        if (val != null) {
            result[key] = stripNullValues(val, { depth: depth - 1, ...options });
        }
    }
    return result;
}
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