Javascript

Javascript security vulnerabilities checklist

Tools to check javascript security vulnerabilities 1) npm installIf you are using npm install in your application, make sure you keep all packages updated to the latest versions. 2) Snyk toolYou can signup for Synk tool for free and add repo to check issues.Synk can be integrated with Github repository and it can create pull …

Javascript security vulnerabilities checklist Read More »

Google Geocoding API to display address details

Google Geocoding API to display address details including latitude and longitude Create your own Google API key and update YOUR_API_KEY in the src/script.js https://developers.google.com/maps/documentation/javascript/get-api-key Use HTML, Javascript and CSS Include axios CDN or you can use npm install Inlude bootstrap CDN or use npm install Address search results using Google Geocodig API Step 1 – create an …

Google Geocoding API to display address details Read More »

Display google maps with different marker icons

Google Maps API to display map with different types of markers for multiple locations First you will need to get Google Maps API key from below link: https://developers.google.com/maps/documentation/javascript/get-api-key Update this API key at YOUR_API_KEY in index.html Step 1 – create an index.html which is used to display map in the div section where id is …

Display google maps with different marker icons Read More »

Create a TODO list design using javascript, html, css

This is a simple todo application design using html, css and vanilla javascript. You will need an editor of your choice to begin with. I usually use vscode with Liveserver extension which helps to view developed application in the browser. First step is to create an html page which will display the todo list. Create …

Create a TODO list design using javascript, html, css Read More »

Form field validations using regex javascript

What is a Regular Expression? As per wikipedia, A regular expression (shortened as regex or regexp; also referred to as rational expression) is a sequence of characters that specifies a search pattern. Create an index.html file where you can add all the form input fields as below. Add name property for the fields which will be accessed in the validation.js to perform regex validations. index.html validation.js …

Form field validations using regex javascript Read More »

Validate a palindrome

A palindrome is a word, number, phrase, or other sequence of characters which reads the same backward as forward, such as madam or racecar.  Return True if it”s a palindrome and False if not palindrome

Find the symmetric difference between arrays using javascript

Find the symmetric difference between arrays using javascript In mathematics, the symmetric difference of two sets, also known as the disjunctive union, is the set of elements which are in either of the sets, but not in their intersection. The mathematical term symmetric difference (△ or ⊕) of two sets is the set of elements …

Find the symmetric difference between arrays using javascript Read More »

How to hide or show details using v-if and v-show directive in Vue JS

Conditional rendering can be achieved using v-ifConditional display can be achieved using v-show First create a vue project using vue cli Now change directory start the server Lets start building the VUE component inside src/components/showHide.vue Remove HelloWorld.vue component and register showHide.vue component in App.vue Your showHide.vue component will look like this:

Measure execution time of a function using javascript

You can measure the performance of javascript code using console.time() function. This can be helpful in debugging and optimizing code which is taking lot of memory. console.time() can be used with console.timeEnd(). console.timeEnd() function tells console to stop calculating the time. You will see result as below: Running loop :0 timesRunning loop :1 timesRunning loop …

Measure execution time of a function using javascript Read More »