javascript Archives - Page 12 of 258

I’ve been messing around with the fetch() api recently, and noticed something which was a bit quirky. let url = "http://jsonplaceholder.typicode.com/posts/6"; let iterator ...

June 2, 2022
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javascript, Programming

IT Nursery

Invalid hook call. Hooks can only be called inside of the body of a function component

I want to show some records in a table using React but I got this error: Invalid hook call. Hooks can only be ...

June 2, 2022
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javascript, Programming

IT Nursery

Return from a promise then()

I have got a javascript code like this: function justTesting() { promise.then(function(output) { return output + 1; }); } var test = justTesting(); ...

June 2, 2022
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javascript, Programming

IT Nursery

When should I use a return statement in ES6 arrow functions

The new ES6 arrow functions say return is implicit under some circumstances: The expression is also the implicit return value of that function. ...

June 2, 2022
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javascript, Programming

IT Nursery

Accessing private member variables from prototype-defined functions

Is there any way to make “private” variables (those defined in the constructor), available to prototype-defined methods? TestClass = function(){ var privateField = ...

June 2, 2022
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javascript, Programming

IT Nursery

How to show Page Loading div until the page has finished loading?

I have a section on our website that loads quite slowly as it’s doing some intensive calls. Any idea how I can get ...

June 2, 2022
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javascript, Programming

IT Nursery

Can the jQuery UI Datepicker be made to disable Saturdays and Sundays (and holidays)?

I use a datepicker for choosing an appointment day. I already set the date range to be only for the next month. That ...

June 2, 2022
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javascript, Programming

IT Nursery

Concat scripts in order with Gulp

Say, for example, you are building a project on Backbone or whatever and you need to load scripts in a certain order, e.g. ...

June 2, 2022
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