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Hi Everyone!

Today we're going to create a new web application with JavaScript (Vanilla JavaScript: No Framework).

In this tutorial, a JavaScript Beginner can create a functional Weather App with ease. and won't face any problems doing that.

You must know the basics in JavaScript and HTML, like JavaScript Objects, functions, If statements, ... etc

The only difficulty you might face, is how to work with an API using JavaScript? but trust me that won't be of a big problem.

Let's talk about the application you're going to build; our weather app will show the weather information that it will get from the API like this, an Icon that shows the weather status, the temperature value (18°C) in Celsius unit, the weather description (clear sky), and then the user's city and country (London, GB).

When the user clicks on the temperature value, that will convert it from Celsius to Fahrenheit.

The icons we're going to use for our web application are created by the Graphic Designer Ashley Jager. Link to her Repo: https://github.com/manifestinteractive/weather-underground-icons

The API provider is http://www.OpenWeatherMap.org

To Create this web application please follow the tutorial on my channel:https://youtu.be/KqZGuzrY9D4

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

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Hi Everyone!
Today we're going to create a new web application with JavaScript (Vanilla JavaScript: No Framework).
In this tutorial, a JavaScript Beginner can create a functional Weather App with ease. and won't face any problems doing that.
You must know the basics in JavaScript and HTML, like JavaScript Objects, functions, If statements, ... etc
The only difficulty you might face, is how to work with an API using JavaScript? but trust me that won't be of a big problem.
Let's talk about the application you're going to build; our weather app will show the weather information that it will get from the API like this, an Icon that shows the weather status, the temperature value (18°C) in Celsius unit, the weather description (clear sky), and then the user's city and country (London, GB).
When the user clicks on the temperature value, that will convert it from Celsius to Fahrenheit.
The icons we're going to use for our web application are created by the Graphic Designer Ashley Jager.
Link to her Repo: https://github.com/manifestinteractive/weather-underground-icons
The API provider is http://www.OpenWeatherMap.org
To Create this web application please follow the tutorial on my channel:https://youtu.be/KqZGuzrY9D4

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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Hi Everyone!
Today we're going to create a new web application with JavaScript (Vanilla JavaScript: No Framework).
In this tutorial, a JavaScript Beginner can create a functional Weather App with ease. and won't face any problems doing that.
You must know the basics in JavaScript and HTML, like JavaScript Objects, functions, If statements, ... etc
The only difficulty you might face, is how to work with an API using JavaScript? but trust me that won't be of a big problem.
Let's talk about the application you're going to build; our weather app will show the weather information that it will get from the API like this, an Icon that shows the weather status, the temperature value (18°C) in Celsius unit, the weather description (clear sky), and then the user's city and country (London, GB).
When the user clicks on the temperature value, that will convert it from Celsius to Fahrenheit.
The icons we're going to use for our web application are created by the Graphic Designer Ashley Jager.
Link to her Repo: https://github.com/manifestinteractive/weather-underground-icons
The API provider is http://www.OpenWeatherMap.org
To Create this web application please follow the tutorial on my channel:https://youtu.be/KqZGuzrY9D4

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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Hi Everyone!
Today we're going to create a new web application with JavaScript (Vanilla JavaScript: No Framework).
In this tutorial, a JavaScript Beginner can create a functional Weather App with ease. and won't face any problems doing that.
You must know the basics in JavaScript and HTML, like JavaScript Objects, functions, If statements, ... etc
The only difficulty you might face, is how to work with an API using JavaScript? but trust me that won't be of a big problem.
Let's talk about the application you're going to build; our weather app will show the weather information that it will get from the API like this, an Icon that shows the weather status, the temperature value (18°C) in Celsius unit, the weather description (clear sky), and then the user's city and country (London, GB).
When the user clicks on the temperature value, that will convert it from Celsius to Fahrenheit.
The icons we're going to use for our web application are created by the Graphic Designer Ashley Jager.
Link to her Repo: https://github.com/manifestinteractive/weather-underground-icons
The API provider is http://www.OpenWeatherMap.org
To Create this web application please follow the tutorial on my channel:https://youtu.be/KqZGuzrY9D4

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

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Hi Everyone!
Today we're going to create a new web application with JavaScript (Vanilla JavaScript: No Framework).
In this tutorial, a JavaScript Beginner can create a functional Weather App with ease. and won't face any problems doing that.
You must know the basics in JavaScript and HTML, like JavaScript Objects, functions, If statements, ... etc
The only difficulty you might face, is how to work with an API using JavaScript? but trust me that won't be of a big problem.
Let's talk about the application you're going to build; our weather app will show the weather information that it will get from the API like this, an Icon that shows the weather status, the temperature value (18°C) in Celsius unit, the weather description (clear sky), and then the user's city and country (London, GB).
When the user clicks on the temperature value, that will convert it from Celsius to Fahrenheit.
The icons we're going to use for our web application are created by the Graphic Designer Ashley Jager.
Link to her Repo: https://github.com/manifestinteractive/weather-underground-icons
The API provider is http://www.OpenWeatherMap.org
To Create this web application please follow the tutorial on my channel:https://youtu.be/KqZGuzrY9D4

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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Hi Everyone!
Today we're going to create a new web application with JavaScript (Vanilla JavaScript: No Framework).
In this tutorial, a JavaScript Beginner can create a functional Weather App with ease. and won't face any problems doing that.
You must know the basics in JavaScript and HTML, like JavaScript Objects, functions, If statements, ... etc
The only difficulty you might face, is how to work with an API using JavaScript? but trust me that won't be of a big problem.
Let's talk about the application you're going to build; our weather app will show the weather information that it will get from the API like this, an Icon that shows the weather status, the temperature value (18°C) in Celsius unit, the weather description (clear sky), and then the user's city and country (London, GB).
When the user clicks on the temperature value, that will convert it from Celsius to Fahrenheit.
The icons we're going to use for our web application are created by the Graphic Designer Ashley Jager.
Link to her Repo: https://github.com/manifestinteractive/weather-underground-icons
The API provider is http://www.OpenWeatherMap.org
To Create this web application please follow the tutorial on my channel:https://youtu.be/KqZGuzrY9D4

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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Hi Everyone!
Today we're going to create a new web application with JavaScript (Vanilla JavaScript: No Framework).
In this tutorial, a JavaScript Beginner can create a functional Weather App with ease. and won't face any problems doing that.
You must know the basics in JavaScript and HTML, like JavaScript Objects, functions, If statements, ... etc
The only difficulty you might face, is how to work with an API using JavaScript? but trust me that won't be of a big problem.
Let's talk about the application you're going to build; our weather app will show the weather information that it will get from the API like this, an Icon that shows the weather status, the temperature value (18°C) in Celsius unit, the weather description (clear sky), and then the user's city and country (London, GB).
When the user clicks on the temperature value, that will convert it from Celsius to Fahrenheit.
The icons we're going to use for our web application are created by the Graphic Designer Ashley Jager.
Link to her Repo: https://github.com/manifestinteractive/weather-underground-icons
The API provider is http://www.OpenWeatherMap.org
To Create this web application please follow the tutorial on my channel:https://youtu.be/KqZGuzrY9D4

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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Hi Everyone!
Today we're going to create a new web application with JavaScript (Vanilla JavaScript: No Framework).
In this tutorial, a JavaScript Beginner can create a functional Weather App with ease. and won't face any problems doing that.
You must know the basics in JavaScript and HTML, like JavaScript Objects, functions, If statements, ... etc
The only difficulty you might face, is how to work with an API using JavaScript? but trust me that won't be of a big problem.
Let's talk about the application you're going to build; our weather app will show the weather information that it will get from the API like this, an Icon that shows the weather status, the temperature value (18°C) in Celsius unit, the weather description (clear sky), and then the user's city and country (London, GB).
When the user clicks on the temperature value, that will convert it from Celsius to Fahrenheit.
The icons we're going to use for our web application are created by the Graphic Designer Ashley Jager.
Link to her Repo: https://github.com/manifestinteractive/weather-underground-icons
The API provider is http://www.OpenWeatherMap.org
To Create this web application please follow the tutorial on my channel:https://youtu.be/KqZGuzrY9D4