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Overriding a browser's current location without breaking the back button or causing an infinite redirect can be tricky sometimes. In this lesson we'll 阅读全文
posted @ 2017-03-23 04:13
Zhentiw
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If you want to reset or just update field value, you can do: reset: reset({key: value, k2:v2}); update: 1. patchValue({k: v}); update part of form fie 阅读全文
posted @ 2017-03-22 19:59
Zhentiw
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For example we have built a form: We want to reponse to each time 'stock' value changes. To do that we can subscrube 'valueChanges' for form. Notice t 阅读全文
posted @ 2017-03-22 19:48
Zhentiw
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forkJoin: When all observables complete emit the last value from each. 阅读全文
posted @ 2017-03-21 23:59
Zhentiw
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Using FormBuilder API can simply our code, for example we want to refactor following code by using FormBuilder: First thing we need to do is actually 阅读全文
posted @ 2017-03-21 23:41
Zhentiw
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React Router v4 allows us to render Routes as components wherever we like in our components. This can provide some interesting use cases for creating 阅读全文
posted @ 2017-03-21 19:55
Zhentiw
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We often want to render a Route conditionally within our application. In React Router v4, the Route components match the current route inclusively so 阅读全文
posted @ 2017-03-21 19:49
Zhentiw
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There are many cases where we will need a catch-all route in our web applications. This can include 404-style routes when nothing is match or other us 阅读全文
posted @ 2017-03-21 19:40
Zhentiw
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With React Router v4 the entire library is built as a series of React components. That means that creating nested Routes is as simple as creating any 阅读全文
posted @ 2017-03-21 19:31
Zhentiw
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React Router v4 ignores query parameters entirely. That means that it is up to you to parse them so that you can use that additional information as re 阅读全文
posted @ 2017-03-21 19:19
Zhentiw
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