@antv/x6
Version:
JavaScript diagramming library that uses SVG and HTML for rendering.
28 lines • 998 B
JavaScript
export function isAsyncLike(obj) {
return typeof obj === 'object' && obj.then && typeof obj.then === 'function';
}
export function isAsync(obj) {
return obj != null && (obj instanceof Promise || isAsyncLike(obj));
}
export function toAsyncBoolean(...inputs) {
const results = [];
inputs.forEach((arg) => {
if (Array.isArray(arg)) {
results.push(...arg);
}
else {
results.push(arg);
}
});
const hasAsync = results.some((res) => isAsync(res));
if (hasAsync) {
const deferres = results.map((res) => isAsync(res) ? res : Promise.resolve(res !== false));
return Promise.all(deferres).then((arr) => arr.reduce((memo, item) => item !== false && memo, true));
}
return results.every((res) => res !== false);
}
export function toDeferredBoolean(...inputs) {
const ret = toAsyncBoolean(inputs);
return typeof ret === 'boolean' ? Promise.resolve(ret) : ret;
}
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