Improve example in the intro. #21020
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r? @brson (rust_highfive has picked a reviewer for you, use r? to override) |
| ownership of any data it uses; we'll have more on the significance of | ||
| this shortly.) This closure is executed in a new thread created by | ||
| `spawn`. | ||
| This program creates ten threads, who all print `Hello, world!`. The `scoped` |
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haha, my closures are people 😉
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Addressed both nits. |
Thank you @bluss for the suggested implementation. Fixes rust-lang#20844
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Improve example in the intro. Reviewed-by: alexcrichton
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Improve example in the intro. Reviewed-by: alexcrichton
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Improve example in the intro. Reviewed-by: alexcrichton
| }); | ||
| } | ||
| }) | ||
| }).collect(); |
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Join guards are collected in this example to show explicitly how the things work, right? The code will behave in exactly the same way if we would just leave them out. Am I correct?
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Well, if you don't collect, the map won't do anything, as it's lazy. If you switch to a for, each guard drops out of scope on each iteration, so they end up executing serially anyway.
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Improve example in the intro. Reviewed-by: alexcrichton
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Thank you @bluss for the suggested implementation. Fixes rust-lang#20844
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Thank you @bluss for the suggested implementation.
Fixes #20844