Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

componentWillMount not triggering under certain scenarios

See original GitHub issue

Hi, I’m using preact-router along with react-redux. As @developit pointed, this check is the problem https://github.com/developit/preact/blob/master/src/vdom/component.js#L131

Removing the if did the trick and triggered componentWillMount. This is my scenario https://github.com/impronunciable/hackdash-front/blob/master/src/containers/Dashboard.js#L8

Issue Analytics

State:
Created 7 years ago
Reactions:3
Comments:7 (7 by maintainers)

Top GitHub Comments

1reaction

developitcommented, Apr 19, 2016

Alright, I’ll get some tests around this. Going to need to queue some lifecycle events, there are 3 open issues relating to their timing now.

0reactions

developitcommented, May 24, 2016

Fix verification: http://codepen.io/developit/pen/reXZvd?editors=0010

Top Results From Across the Web

componentWillMount is deprecated and will be removed in the ...

It is called before render(), therefore calling setState() synchronously in this method will not trigger an extra rendering.

`componentWillReceiveProps()` does not trigger for new ...

The componentWillReceiveProps() method only triggers if props change. However, there are situations where the context changes, but the props ...

React.Component

UNSAFE_componentWillMount() is invoked just before mounting occurs. It is called before render() , therefore calling setState() synchronously in this method ...

React componentWillMount() | Working and Example with ...

Guide to React componentWillMount(). Here we discuss the introduction, syntax, and working along with examples and advantages.

How to Use componentWillMount in React - Pluralsight

As you know, the life-cycle hook componentWillMount triggers before the initial render, and the function will only trigger once in the ...