Transforms don't execute until the consumer pulls. There's no eager evaluation, no hidden buffering. Data flows on-demand from source, through transforms, to the consumer. If you stop iterating, processing stops.
Annual energy bills will fall by £117 for millions of households from April after Rachel Reeves’s plan to cut £150 a year from bills was partly foiled by rising costs.
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Planning to switch fields? Be bold, know your limits and choose your institution wisely, say three UK research leaders.，详情可参考heLLoword翻译官方下载
Фото: РИА Новости