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php strip non numbers from string - remove all non-numeric characters from a string
this will remove all non alpha numeric numbers from a string. in this example it returns: 123456 from $1234.56x
Using props with Stateless Functional Components in React
Here is an example of a Stateless Functional Component but i cant get the PropTypes working correctly in my demo, not sure what im doing wrong here, but the code seems to work in the compiler just not..
How to Access Props Using this.props in React
If you would like to access a class component prop within its self you can do this using the this keyword.
How to Use PropTypes to Define Props in React
React allows you to define the types of props given to your components to make sure that invalid data is not sent as the prop to the element. To do this you can define propTypes. You can defin..
How to Override Default Props in React
The following code explains how you can override the default props in react. In this example the default of quantity is set to 0, so we can pass in quantity in the items to override its default..
How to use default props in React
If you dont want to specify props every time you use an element, you can also specify defaults for these items. This can also be useful to remember which props are needed per component. This can be a..
How to Pass an Array as Props in React
If you need to pass larger amounts of information to a component you can pass in an array rather than just a single variable. More information on the join method on the array can be found here. Here..
How to Pass Props to a Stateless Functional Component in React
Props are like properties that you can pass into a component in react. A prop would be something like this in your component. JSX <div> <MyProp id="1234" /></div> The..
How to Write a React Component from Scratch
Just testing my react component writing skills...
How to Render a React Class Component to the DOM
This shows how you can get react to render a component into the page or DOM. So actually getting and showing the code that you have been writing in react.
How to Compose React Components in React
In this code we nest the components NonCitrus and Citrus into the Fruits Component. Then nest the Fruits within the TypesOfFood component. Also added the additional components, Vegetables, Non..
How to Use React to Render Nested Components
It can be useful to take components and render them inside other components while still making them into seperate items. This shows how you can take each component and nest it within another one and ..
How to Create a Component with Composition in React
This shows how you can compose multiple React components together. In this example we return the parent component which has within it the child component, you can add as many child components as requ..
How to Create a React Component using the ES6 class method
One way to add a react component is to use the Stateless Functional Component method, and another way is to use the ES6 extends syntax. This method seems more complex than the 1st for some reason mayb..
What is a Stateless Functional Component in React
What is a Stateless Functional Component? A stateless component is one that can recive data and render it, but it does not manage the provided data or track changes to it. This method creates ..
How do Self-Closing JSX Tags Work?
So in JSX all the tags must be closed, other wise it can break the element. for example: <div> must have a closing </div> and also for elements like <br> and <hr> must include..
How to Define a HTML Class in JSX in React
When writing JSX you cant add classes like you would in HTML so this code would not work: JSX <div class="my-class"></div> Instead we have to use className. JSX uses camel case for a l..
How to Render HTML Elements to the DOM with React
Once you have a JSX element defined you can write it to the page with ReactDOM.render(componentToRender, targetNode), In this example we are targeting the div with the id challenge-node. JSX ..
How to Add Comments in JSX
To put comments inside JSX, you use the syntax {/* */} to wrap around the comment text. You do actually need the curley brackets, and have to add it under the other elements for this to wor..
Create a Complex JSX Element
JSX must return a single element, so you must wrap your items in a div element you cant just return a bunch of p tags. Define a new constant JSX that renders a div which con..
Create a Simple JSX Element
The current code uses JSX to assign a div element to the constant JSX. Replace the div with an h1 element and add the text Hello JSX! inside it.
adding react with JSX using babel
just wanted to see how JSX would work with react and babel, so this way you can write JSX and babel compiles it for use with react. This is apparently not a good way to do things and can be qui..
react hello world with time and date updating
here is a react hello world with the date and time updating on setInterval 1000 miliseconds. Again with react it has to be compiled from JSX for it to work, so i have included the original and ..
react hello world with variable name
i was just testing some of the hello world examples on the react site, and as they use JSX they cant be directly entered into your code, so you need to run a pre compiler (not sure of the exact term f..
react basic hello world
the most basic hello world using react js
form elements australian state list
A list of the Australian States converted into a form element select option dropdown. Sorted in alphabetical order.
Form elements New Zealand region list
A list of the Regions of New Zealand converted into a form element select option dropdown. Sorted in alphabetical order. Ready to paste into your own form.
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