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React – Comments

Comments In React https://stackoverflow.com/questions/30766441/how-to-use-comments-in-react#comment103855263_30766542 Within the render method comments are allowed, but in order to use them within JSX, you have to wrap them in braces and use multi-line style comments. <div className=”dropdown”> {/* whenClicked is a property not an event, per se. */} <Button whenClicked={this.handleClick} className=”btn-default” title={this.props.title} subTitleClassName=”caret”></Button> <UnorderedList /></div> Copy You can read […]

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Add Parameters To Form Action

I need to the add a JavaScript variable to a link in action form. Is that possible? JavaScript function: <script> function parameter() { function getUrlVars() { var vars = {}; var parts = window.location.href.replace(/[?&]+([^=&]+)=([^&]*)/gi, function (m, key, value) { vars[key] = value; }); return vars; } var vpid = getUrlVars()[“pid”]; } //var link = “second_02.html”

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React – Cheatsheet

=> The React script allows us to write React components => The ReactDOM script allows us to place our components and work with them in the context of the DOM ReactDOM.render(<Greeting />, document.getElementById(‘root’)); Copy Translating the line of code above to English would sound something like this; Use ReactDOM’s render method to render the Greeting

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Add “_blank”

/* here are two different ways to do this */ //using jquery: $(document).ready(function(){ $(‘#link_other a’).attr(‘target’, ‘_blank’); }); // not using jquery window.onload = function(){ var anchors = document.getElementById(‘link_other’).getElementsByTagName(‘a’); for (var i=0; i<anchors.length; i++){ anchors[i].setAttribute(‘target’, ‘_blank’); }} // jquery is prettier. 🙂 Copy You could also add a title tag to notify the user that you

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Uncaught Reference Error

app.js “use strict”;var tb = { rahmen: { eigenschaften: [ “hochwertig”, “verwindungssteif”, “vergleichsweise verwindungssteif”, “sehr verwindungssteif”, “sehr hohe Verwindungssteifigkeit”, “hohe Steifigkeit” ] }}; index.html <!DOCTYPE html><html lang=”en”><head> ((Some Head-Tags)) <script src=”dist/app.js” defer></script> ((Some Head-Tags))</head><body> <div class=”container”> <section> <h1>Test</h1> <script> console.log(tb.rahmen.eigenschaften[3]); </script> </section> </div></body></html> Error Message Uncaught ReferenceError: tb is not defined The problem It must

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JS To Insert CSS Into Page

u can also do this using DOM Level 2 CSS interfaces (MDN): var sheet = window.document.styleSheets[0]; sheet.insertRule(‘strong { color: red; }’, sheet.cssRules.length);  …on all but (naturally) IE8 and prior, which uses its own marginally-different wording: sheet.addRule(‘strong’, ‘color: red;’, -1);  There is a theoretical advantage in this compared to the createElement-set-innerHTML method, in that you don’t

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CSS Functions

https://css-tricks.com/complete-guide-to-css-functions/ Like any other programming language, CSS has functions. They can be inserted where you’d place a value, or in some cases, accompanying another value declaration. Some CSS functions even let you nest other functions within them! More In programming, functions are a named portion of code that performs a specific task. An example of

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