Angular 2 – Using ‘this’ inside setTimeout
You need to use Arrow function ()=> ES6 feature to preserve this context within setTimeout.
javascript
Uncaught TypeError: Cannot read property ‘call’ of undefined at __webpack_require__
Process In order to find a potential solution to this issue, I had to tinker with the optimization module, which was indeed the issue here, even when not enabled surprisingly. My best guess is that some parameters are set to default in production mode and not in dev mode and this causes the issues of imports and undefined properties. … Read more
OnChange event handler for radio button (INPUT type=”radio”) doesn’t work as one value
Here’s a JSFiddle demo: https://jsfiddle.net/crp6em1z/
Textarea Auto height
It can be achieved using JS. Here is a ‘one-line’ solution using elastic.js: Updated: Seems like elastic.js is not there anymore, but if you are looking for an external library, I can recommend autosize.js by Jack Moore. This is the working example: Check this similar topics too: Autosizing textarea using Prototype Textarea to resize based on content length Creating … Read more
var.replace is not a function
My guess is that the code that’s calling your trim function is not actually passing a string to it. To fix this, you can make str a string, like this: str.toString().replace(…)…as alper pointed out below.
How to interpolate variables in strings in JavaScript, without concatenation?
You can take advantage of Template Literals and use this syntax: Template literals are enclosed by the back-tick (` `) (grave accent) instead of double or single quotes. This feature has been introduced in ES2015 (ES6). Example How neat is that? Bonus: It also allows for multi-line strings in javascript without escaping, which is great for templates: Browser support: … Read more
Pass react component as props
Using this.props.children is the idiomatic way to pass instantiated components to a react component When you pass a component as a parameter directly, you pass it uninstantiated and instantiate it by retrieving it from the props. This is an idiomatic way of passing down component classes which will then be instantiated by the components down … Read more
Javascript/Jquery Convert string to array
Assuming, as seems to be the case, ${triningIdArray} is a server-side placeholder that is replaced with JS array-literal syntax, just lose the quotes. So: not
Find the largest palindrome made from the product of two 3-digit numbers – Javascript
Yours doesn’t work properly since it checks 999*999, then 999*998, then 999*997 until it reaches about 999*583. While it doesn’t check 997*995 or something closer to the top which generates a larger number Here is another approach, store all palindrome generated by 3 numbers in an array, then use Math.max on the array to get … Read more
onEnter not called in React-Router
onEnter no longer exists on react-router-4. You should use <Route render={ … } /> to get your desired functionality. I believe Redirect example has your specific scenario. I modified it below to match yours.