Convert to uppercase: lettext ="Hello World!"; letresult = text.toUpperCase(); Try it Yourself » Description ThetoUpperCase()method converts a string to uppercase letters. ThetoUpperCase()method does not change the original string.
// convert message to uppercase const upperMessage = message.toUpperCase(); console.log(upperMessage); // Output: JAVASCRIPT IS FUN Run Code toUpperCase() Syntax The syntax of the toUpperCase() method is: str.toUpperCase() Here, str is a string. toUpperCase() Parameters The toUpperCase() ...
JavaScript provides two helpful functions for converting text to uppercase and lowercase. String.toLowerCase() converts a string to lowercase, and String.toUpperCase() converts a string to uppercase. var text = 'This sentence has some MIXED CASE LeTTeRs
Thevalueis the value to convert to a JSON string. The replacer is either a function that alters the behavior of the stringification process or an array which servers as a filter for the properties of the value object to be included in the JSON string. JSON.stringify simple values In the f...
string.uppercase.all('Chris Humboldt'); // Convert a string to uppercase const randomNumber = Rocket.random.integer(); // Generate a random integerMake sure not to overwrite the Rocket variable name to anything else within your project. Often a new reference will be made for the library ...
Check this out: // https://doc.rust-lang.org/book/ pub fn excited_greeting(original: &str) -> String { format!("HELLO, {}", original.to_uppercase()) } 其次,我们必须对Cargo.toml配置文件进行两项更改: 添加wasm_bindgen作为依赖项。 将库二进制文件的类型配置为cdylib或动态系统库。在这种...
new String(str) An object obj obj (unchanged, nothing to convert) Here are some examples: > Object(null) instanceof Object true > Object(false) instanceof Boolean true > var obj = {}; > Object(obj) === obj true The following function checks whether value is an object: function isObj...
You want to convert a string to all upper- or lowercase letters. Solution Use the two dedicatedStringobject methods,toLowerCase()andtoUpperCase(), for case changes: var myString = "New York"; var lcString = myString.toLowerCase(); var ucString = myString.toUpperCase(); ...
Let say we have an array of names which we need to transform each string to uppercase.const names = ['irish', 'daisy', 'anna'];The imperative way will be as such:const transformNamesToUppercase = function(names) { const results = []; for (let i = 0; i < names.length; i++) ...
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