I will show in this short tutorial how to insert JavaScript application (in React, Vue, Angular) into SalesForce page (by Aura component). Our JavaScript application can be done in whatever framework you want. It can be VueJS, ReactJS, Angular or even any kind of front-end application, also written in pure JavaScript code without frameworks. I…
Category: tips front-end
Create modal window in vanilla JavaScript
Modal or popup windows are very useful elements of websites or webapps – you can display in it a notifications, additional or detailed information or it can be a “dialog window” in which user must take some decision, let’s say “Are you sure you want to delete the file?” So in general – there are…
Simple cookie banner – pure JavaScript + HTML
I will show in this article how to create a simple cookie banner (cookie or GDPR consent) notification only with pure HTML, CSS and JavaScript, without any kind of JavaScript library which would support us in that task. Why it is important to build on our own a simple cookie consent banner? The most important…
Front-end basics: #4 Tables columns the same or defined width + wrap long text
Tables are strange HTML elements. If we put CSS rule to whole table: width: 100%; then columns inside that will try to use space of whole table, sometimes it will fit the longest word in one column, sometimes it will just try to fit columns widths more or less proportional to the longest word in…
Front-end basics: #3 HTML5 – form validation
This is quite long topic and but shortly I will describe here how to use HTML5 forms validation. You must remember that it can’t replace the validation of the data done in the back-end. HTML5 form validation is only a pre-check of data entered by user into form. You can add following attributes to your…
Front-end basics: #2 HTML – semantic elements, classes, id
HTML semantic elements It is very important to use HTML elements in a proper way. If we want to list some text items, the we must create a normal list with <ul> or <ol> tags, not <p> or <div> tags with some additional CSS styles. So what semantic elements do we have in HTML. There…
Front-end basics: #1 HTML – document syntax, head content, open graph tags…
If you are a beginner in front-end world or you are back-end programmer, like C#, Java, Python or SAP-ABAP and from time to time you must do some coding in HTML, CSS or JavaScript, than you are in a right place! I will show in this short course the most important parts of Front-End world,…
JavaScript: creating callback functions
Many native methods in JavaScript uses callback functions. When you first see the callback function usage, liek in example below, when it is passed as another method’s argument, than it may look strange for you. You can think how the method can me an argument of a function? But this is quite simple, when we…
jQuery: scroll to top button
I will show in this short article how to add in JavaScript “scroll top” button. This is a popular solution used on blogs or websites with “one page” layout – so in situations when web page has a long content, which require a lot of scrolling down, then user has easy option to go smoothly…
JavaScript: Adblock check
If you are running a website, you must know how annoying are AdBlock users. You try to give the best possible content for your users for free and you want simply to earn some money by external advertising services like Google Adsense, but AdBlock users are constantly minimizing your incomes. So… JUST CHECK IF USER…
JavaScript: check if variable is object or array
🠗 Skip reading – scroll down to solution 🠗 Why it is so important to verify if variable is an object or array? In JavaScript it is easy to be fooled. The same is with objects and arrays. Often we must check if some variable is object or array. Short example – we receive some…