2024-05-06 20:40:05 +00:00
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---
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2024-10-29 18:27:12 +00:00
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date: 2020-10-26
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2024-05-06 20:40:05 +00:00
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id: d773822a-2ab2-4661-b5fa-8e16c5fe0dc4
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title: ES2017
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---
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# Description
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What's new in ES2017
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# Async functions
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## Fulfilling a [promise](20200911154351-promises)
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``` javascript
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async function asyncFunc() {
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return 123;
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}
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asyncFunc().then((x) => console.log(x));
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// 123
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```
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## Rejecting a [promise](20200911154351-promises)
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``` javascript
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async function asyncFunc() {
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throw new Error("Problem!");
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}
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asyncFunc().catch((err) => console.log(err));
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// Error: Problem!
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```
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# Object functions
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- [Object.entries](20201113102048-object_entries)
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- [Object.values](20201113102106-object_values)
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- [Object.getOwnPropertyDescriptors](20201113102125-object_getownpropertydescriptors)
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# String methods
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Pads the beginning of a [string](20200922164551-strings)
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- [padStart](20201112095657-javascript_string_padstart_method)
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- [padEnd](20201112095711-javascript_string_padend_method)
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