How do you convert a JavaScript date to UTC?

The toISOString() method returns a string in simplified extended ISO format (ISO 8601), which is always 24 or 27 characters long (YYYY-MM-DDTHH:mm:ss.sssZ or ±YYYYYY-MM-DDTHH:mm:ss.sssZ, respectively). The timezone is always zero UTC offset, as denoted by the suffix “Z“. Source: MDN web docs The format you need is created with the .toISOString() method. For older browsers … Read more

Get cookie by name

I have a getter to get the value from a cookie. Now I have 2 cookies by the name shares= and by the name obligations= . I want to make this getter only to get the values from the obligations cookie. How do I do this? So the for splits the data into separate values … Read more

document.getElementbyId() returning null

You are executing your javascript code BEFORE the <div id=”connectedUnregistered” /> was actually created. Also note that you did not close your <div> with a corresponding </div>. So move your javascript code to a part below your HTML. Or execute it after the page finished loading. If you are using JQuery you can do:

Uncaught Invariant Violation: Rendered more hooks than during the previous render

The fix works because the first code sample (the erroring one) invokes a function inside onClick, while the second (the working one) passes a function to onClick. The difference is those all-important parentheses, which in JavaScript mean ‘invoke this code’. Think of it this way: in the first code sample, every time component is rendered, renderResults is invoked. Every time that … Read more