React Javascript Array Object [closed]
You need to parse that object with JSON.parse(string) first.
reactjs
numberic as object key, value as array [closed]
Your object structure is incorrect. You need to put 1 and 2 on the same level of object ob: const ob = { “1”: [{ “name”: “destination” }], “2”: [{ “name”: “destination” }] }; console.log(ob[‘1’]); console.log(ob[‘2’]);
How to add function in JSX?
1) You’re missing a closing bracket on the ReactDOM line: ReactDOM.render(<Main />, document.getElementById(‘root’)); 2) You need to call the function for it to work vanilla_JS() In this working example instead of logging to the console I’m returning a string: function Main() { const vanilla_JS = function() { return ‘testing’; } return ( <main> <div>{vanilla_JS()}</div> </main> … Read more
What is component in reactjs?
Just go to the React documentation : Components let you split the UI into independent, reusable pieces, and think about each piece in isolation.
react similar JavaScript library [closed]
It is hard to say what you call “complex platform”, React is a library, not a framework or a platform (maybe RN is), so I would not consider it as a complex. There are pretty much libraries which are using virtual DOM rendering, I have few options for you: Deku – a library for rendering … Read more
Error Message : TypeError: Cannot read property 'setState' of undefined
You need to bind this in your methods. By convention, this is done in the constructor. Examples can be found here.
How to Protect website code PHP / JS? [closed]
PHP is handled server-side. You don’t need to worry about that 😛 HTML is client side and can’t be obfuscated because the client won’t be able to read it. As for JS, I would recommend something like this. EDIT: As for seeing if the code is running on an okay domain, use window.location.href in your … Read more
Build an HTML table using React from arrays [closed]
You can create your table using Table function and EachRow function. var headers=[‘heading1′,’heading2’]; var values=[[‘1′,’2’],[‘3′,’4’]]; var Table = (props) => { return ( <table className=”table”> <thead> <tr> {props.headers.map(header => <th>{header}</th>)} </tr> </thead> <tbody> {props.values.map(row => <EachRow row={row} />)} </tbody> </table> ); }; var EachRow = (props) => { return ( <tr> {props.row.map(val => <td>{val}</td>)} </tr> … Read more
Remove duplicate from array within array
You can check if an element exists prior to using push. Lots of ways to approach this, but an easy solution might be: Array.prototype.pushUnique = function pushUnique(item) { if (this.indexOf(item) === -1) { this.push(item); } } // Then use it… const arr = []; arr.pushUnique(“Family Practice”); // arr = [“Family Practice”] arr.pushUnique(“General Practice”); // arr … Read more