Greetings!
I am curious about replicating the functionality of this PHP code in JavaScript:
<?php
if (strpos($_SERVER["HTTP_USER_AGENT"], 'Chrome') == true) {
echo "<style>h1 { color: red; }</style>";
}
?>
Greetings!
I am curious about replicating the functionality of this PHP code in JavaScript:
<?php
if (strpos($_SERVER["HTTP_USER_AGENT"], 'Chrome') == true) {
echo "<style>h1 { color: red; }</style>";
}
?>
var isChrome = navigator.userAgent.toLowerCase().includes('chrome');
if (isChrome) {
document.writeln("<style>h1 { color: red; }</style>");
}
This code snippet detects if the user's browser is Chrome and changes the color of <h1> tags to red if it is.
If you're looking for alternative methods to detect different browsers using JavaScript, check out these resources: Detecting Google Chrome with JavaScript JavaScript to Detect Google Chrome
Implement the Modernizr script to automatically detect features and enhance your CSS styling by leveraging the additional classes provided.
When it comes to browsing on a smartphone, things can get a bit complicated because different browser versions behave differently when it comes to JavaScript/CSS. For instance, the Android browser didn't support HTML5 until Android OS 2.0, and even in later versions it supported the HTML5 video tag but not the audio tag. Mobile Safari also has its own variations. The best approach is to analyze the user-agent string and extract information about the OS version/platform/OS in order to adjust accordingly. I've created a small function to gather some details from the browser's user-agent.
var agentInfo=(function(){
var info={},
ua=navigator.userAgent.split(/[()]/)[1].split(/;/);
info.platform=ua[0] && ua[0].toLowerCase();
info.version=ua[2] && ua[2].match(/[0-9._]+/g)[0];
info.os=ua[2] && (temp=ua[2].match(/[^0-9_.]+/g)[0].toLowerCase()) && (temp=/(windows)|(linux)|(mac)|(iphone)|(android)/.exec(temp)) && temp[0];
return info;
})();if ( navigator.userAgent.indexOf('Safari') > -1 )
document.write("<style type=\"text/css\">h1 { color: blue; }</style>");
A different approach, more concise
navigator.userAgent.indexOf('Safari') > -1 ?
document.write("<style type=\"text/css\">h1 { color: blue; }</style>") : "";
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