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Comments (2)

otakustay avatar otakustay commented on June 16, 2024

基于此load()方法也变得比以前几百行代码简单多了:

    async load() {
        let runLoader = async loader => {
            let result = await loader(this);
            this.fill(result);
            return result;
        };

        for (let loader of this.loaders) {
            if (typeof loader === 'function') {
                await runLoader(loader);
            }
            else {
                // 一定是数组
                await Promise.all(loader.map(runLoader));
            }
        }
    }

from ub-ria.

otakustay avatar otakustay commented on June 16, 2024

putLoader在没有向前的兼容性考虑也比putDatasource简化不少:

    putLoader(item, index) {
        if (index === undefined) {
            this.loaders.push(item);
        }
        else if (!this.loaders[index]) {
            // 如果要代码方便,这里使用`[item]`全部转为数组最合适,
            // 但是使用数组的话,在`load`阶段会需要`Promise.all`包一层,对效率和调用堆栈有影响
            this.loaders[index] = item;
        }
        else {
            this.loaders[index] = [].concat(this.loaders[index], item);
        }
    }

from ub-ria.

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