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Browser Support. toUpperCase () is an ECMAScript1 (ES1) feature. Track your progress - it's free! Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.
22 cze 2009 · Capitalize the first letter of all words in a string: function ucFirstAllWords( str ){ var pieces = str.split(" "); for ( var i = 0; i < pieces.length; i++ ) { var j = pieces[i].charAt(0).toUpperCase(); pieces[i] = j + pieces[i].substr(1); } return pieces.join(" ");} Share.
12 wrz 2023 · This method will convert any non-string value to a string, when you set its this to a value that is not a string: const a = String.prototype.toUpperCase.call({ toString() { return "abcdef"; }, }); const b = String.prototype.toUpperCase.call(true); // prints out 'ABCDEF TRUE'.
toUpperCase () Return Value. Returns a new string representing the calling string converted to uppercase. Notes: The toUpperCase () method raises TypeError when called on null or undefined. The toUpperCase () method does not change the original string.
16 wrz 2024 · The toUpperCase() is an inbuilt function in TypeScript that is used to convert the characters within a string to uppercase. It does not modify the original string but returns a new string with the characters converted. This method does not accept any parameters. Syntaxstring.toUpperCase( ) Parameter: This method does not accept any parameter. Retur
12 lut 2024 · In JavaScript, you can convert a string to uppercase using thetoUpperCase () method, which is available on string objects. This method returns a new string with all alphabetic characters converted to uppercase. Syntax: string.toUpperCase () string: The string that you want to convert to uppercase.
27 cze 2017 · The toUpperCase() method returns the calling string value converted to upper case.
