What is ReflectAll(tasks) in Async?
Async is a utility module that provides powerful, straight-forward functions for working with asynchronous JavaScript.
Async reflectAll
Async reflectAll is a helper function that wraps an array or an object of functions with async reflect. It returns a type array of async functions that are each wrapped in async.reflect. Reflect is useful as it wraps any async function in another function and always results a return object. If there is an error, the result object will return a NULL value.
Key features
- It is a static method.
- It is a member of
module:utils. - The parameters are collections of async functions of type
Array|Object|Iterabletasks. - It returns an array of async functions that are each wrapped in
async.reflect.
Sample Code
The default code for this method is reflectAll:
export default function
// tasks is the parameters
reflectAll(tasks) {
var results;
// if it's an array, simply perform reflect on the whole array
if (Array.isArray(tasks)) {
results = tasks.map(reflect);
} else {
// otherwise, call reflect individually on each task and store it in an array
results = {};
Object.keys(tasks).forEach(key => {
results[key] = reflect.call(this, tasks[key]);
});
}
return results;
}
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