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8 gru 2022 · Yes, any string in JavaScript has a toLowerCase () method that will return a new string that is the old string in all lowercase. The old string will remain unchanged. So, you can do something like: "Foo".toLowerCase (); document.getElementById ('myField').value.toLowerCase (); edited Dec 8, 2022 at 21:58.
12 wrz 2023 · The toLowerCase() method returns the value of the string converted to lower case. toLowerCase() does not affect the value of the string str itself.
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x. <!DOCTYPE html> <html> <body> <h1>JavaScript Strings</h1> <h2>The toLowerCase() Method</h2> <p>toLowerCase() converts a string to lowercase letters: </p> <p id="demo"></p> <script> let text = "Hello World!"; let result = text.toLowerCase(); document.getElementById("demo").innerHTML = result; </script> </body> </html>
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16 wrz 2021 · How to use the toLowerCase() method in JavaScript. The toLowerCase method converts a string to lowercase letters. The general syntax for the method looks like this: String.toLowerCase() The toLowerCase() method doesn't take in any parameters. Strings in JavaScript are immutable.
