![]() The innerHTML of #welcome-user becomes equal to Leeroy Jenkins. "address": "123 Wilson Way, New York NY, 10165" ![]() If you were to do output the escaped variable ( var user = #), you would receive an escaped version of the object (where quotation marks and apostrophes are converted to '), which is not what we want in order for JSON.stringify to work on it.Īddress: "123 Wilson Way, New York NY, 10165"ĭocument.getElementById("welcome-user").innerHTML = setUsername(user.name) It's also necessary to output the raw contents of the variable, instead of the evaluated form of it. all the information about a user), you must stringify the output in Pug for it to be treated as a JavaScript object. If you need to interpolate the value of a JavaScript object (e.g. Some popular engines include Jade, Pug and EJS. The engines generate the final HTML page to be rendered. Apps like these consist of templating engines and templates. ![]() Sets the username of the current user to be displayed site-wide Node.js Express Examples: Rendered, REST, and Static Websites. This is not necessary for number, where JavaScript will interpret our number as it we intend it to (as a number). In this blog post, we'll introduce you to setting up an express project, working with the most popular templating libraries for server-side rendered websites, and how to create APIs to send JSON data to. It is a right of passage for every javascript developer to learn how to create full-stack applications and APIs. Express is by far the most popular backend web framework in the NodeJS world. In the below example, we have to wrap username in quotation marks in order for JavaScript to interpret it as a string Pug will output the content of the variable as-is, so we need to put it in quotation marks for it to be a proper JavaScript string. Intro to Express, Templating and API's (EJS, Handlebars, Mustache, Pug) express node javascript. In the case of variables, numbers, strings, and the like, you can pass these types of variables directly into your JavaScript with bracket syntax plus an explanation point (so that the code inside the brackets is not evaluated.) This is useful for parametrizing JavaScript code that require something from your server. I have used fs to load the file, lodash map to map it to an array. Interpolating values is helpful if you need to pass a server-side variable to client-side JavaScript (or other languages that require it). I want to send the data in this json file to the pug template and iterate over it in a div.
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