It will go away, and then be initialised. If you have this question, it means you have no exact idea of the lifespan of client-side state in a browser. First of all, a document is created under current tab of the browser when a url is first requested from the server side. The client-side state’s …
What happens to the redux store if I refresh the browser? Read More »
It only aligh the “items” to the center axis. Text inside each item is not aligned in center Here is an example provided by w3schools . You can see “1” is not in the center of the pink box.
Where to put the data fetching code? componentWillMount() ? Not any more. It’s been deprecated. You have no choice but put it inside componentDidMount() , which is recomendded by React. However ther is a big issue. componentDidMount() is actually AFTER render(). It "works" because after componentDidMount() finishes its job and changes some state, render() will …
Load data from backend before rendering a React component – best practice Read More »
Before you start Get a domain If you haven’t got one, you can buy one. You can get it from AWS Route 53 Get a SSL certificate for your domain You can get it from AWS Certificate Manager. Create an IAM User You will need this user’s access key and access secret to run eb-cli …
Things to do for a serious Java website when using Elastic Beanstalk Read More »
If you really want them work well, : 1. Make sure your mysql’s version is 5.6.5+ 2. The two columns exact data types must be createdAt timestamp not null DEFAULT CURRENT_TIMESTAMP, updatedAt timestamp null DEFAULT NULL ON UPDATE CURRENT_TIMESTAMP
When I use “model” for the attribute name in the Jsp views, it only works in the original view, but not in other parts of the whole, merged view. But when I use “it” instead, everything works. I don’t know why. Maybe Jersey removes “model” from request attributes after rendering the original view
DBeaver – Much better than MySQL Workbench and it serves all kinds of DBMS-es
It doesn’t disappear after window closed It doesn’t expire The old standard of it only allow string to be saved. New standard is not like so, but all mainstream browsers still use the old standard.
I set no margin or padding at all, but there is white space above the header. <header style=”background-color:gray”> <h1>Test margin collapsing</h1> </header> There is no margin in the "header" or "h1". So why? First of all, the browser adds margin to "h1". Open your developer console, you can see things like "-webkit-margin-before: 0.67em;" So there …