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The HTML/CSS, JavaScript, Node.js, and SQL online test assesses candidates' knowledge across the whole Web stack from HTML, CSS, and JavaScript on the Web front-end and Node.js on the back-end to SQL for data access.
It's an ideal test for pre-employment screening. A good full stack Node.js developer needs to be able to use a wide range of technologies.
This online test requires candidates to solve coding problems, as well as to find and fix bugs in multiple technologies.
Every user on your website has an image avatar that is displayed when they post a comment. You want to style these images differently from other images on your site. Add a CSS class named avatar that fulfils the following requirements:
For example, the avatar in the template should look like:
Implement the ensure function so that it throws an error if called without arguments or the argument is undefined. Otherwise it should return the given value.
Consider the following package.json for a Node.js application:
{
"name": "skill-measure-app",
"private": true,
"version": "1.0.0",
"main": "lib/main.js",
"scripts": {
"build": "npm run cleanup & npm run test & npm run publish",
"cleanup": "rm -fr ./lib",
"test": "jest",
"publish": "npm publish lib"
},
"dependencies": {
"jest": "^23.0.1",
"custom-package": "file:../custom-package"
}
}
Select all the correct statements.
Given the following data definition, write a query that returns the number of students whose first name is John.
TABLE students id INTEGER PRIMARY KEY, firstName VARCHAR(30) NOT NULL, lastName VARCHAR(30) NOT NULL
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