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What is the best way to trigger onchange event in react js
...use prototype of HTMLTextAreaElement class.
New codepen example.
All credits to this contributor and his solution
Outdated answer only for React <=15.5
With react-dom ^15.6.0 you can use simulated flag on the event object for the event to pass through
var ev = new Event('input', { bubbles: t...
Convert HH:MM:SS string to seconds only in javascript
...
Try this:
var hms = '02:04:33'; // your input string
var a = hms.split(':'); // split it at the colons
// minutes are worth 60 seconds. Hours are worth 60 minutes.
var seconds = (+a[0]) * 60 * 60 + (+a[1]) * 60 + (+a[2]);
console.log(seconds);
...
How to configure git push to automatically set upstream without -u?
I want git push origin to automatically set the upstream reference when I push a locally-created branch for the first time.
...
Android search with Fragments
...or an example of how to implement the standard Android search interface with Fragment s? In other words, is it possible to put a standard search with a SearchManager in a Fragment?
...
How good is Java's UUID.randomUUID?
I know that randomized UUIDs have a very, very, very low probability for collision in theory, but I am wondering, in practice, how good Java's randomUUID() is in terms of not having collision? Does anybody have any experience to share?
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Run JavaScript code on window close or page refresh?
... which are used differently depending on the browser. You can assing them either by setting the window properties to functions, or using the .addEventListener:
window.onbeforeunload = function(){
// Do something
}
// OR
window.addEventListener("beforeunload", function(e){
// Do something
}, f...
How to pass objects to functions in C++?
...hich case you pass by non-const reference
the function should be callable without any argument, in which case you pass by pointer, so that users can pass NULL/0/nullptr instead; apply the previous rule to determine whether you should pass by a pointer to a const argument
they are of built-in types, ...
How can I wait for set of asynchronous callback functions?
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You haven't been very specific with your code, so I'll make up a scenario. Let's say you have 10 ajax calls and you want to accumulate the results from those 10 ajax calls and then when they have all completed you want to do something. You can do it like ...
Why does the month argument range from 0 to 11 in JavaScript's Date constructor?
When initializing a new Date object in JavaScript using the below call, I found out that the month argument counts starting from zero.
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What is ECMAScript?
...avaScript is a subset of ECMAScript. JavaScript is basically ECMAScript at its core but builds upon it. Languages such as ActionScript, JavaScript, JScript all use ECMAScript as its core. As a comparison, AS/JS/JScript are 3 different cars, but they all use the same engine... each of their exteriors...