javascript capitalize string
//capitalize only the first letter of the string.
function capitalizeFirstLetter(string) {
return string.charAt(0).toUpperCase() + string.slice(1);
}
//capitalize all words of a string.
function capitalizeWords(string) {
return string.replace(/(?:^|\s)\S/g, function(a) { return a.toUpperCase(); });
};uppercase string in js
var str = "Hello World!";
var res = str.toUpperCase(); //HELLO WORLD!capitalize first letter javascript
function capitalizeFirstLetter(string) {
return string.charAt(0).toUpperCase() + string.slice(1);
}
console.log(capitalizeFirstLetter('foo bar bag')); // Foocapitalize string js
With performance metrics...
// 10,889,187 operations/sec
function capitalizeFirstLetter(string) {
return string[0].toUpperCase() + string.slice(1);
}
// 10,875,535 operations/sec
function capitalizeFirstLetter(string) {
return string.charAt(0).toUpperCase() + string.slice(1);
}
// 4,632,536 operations/sec
function capitalizeFirstLetter(string) {
return string.replace(/^./, string[0].toUpperCase());
}
// 1,977,828 operations/sec
String.prototype.capitalizeFirstLetter = function() {
return this.charAt(0).toUpperCase() + this.slice(1);
}javascript capitalize
myString = 'the quick green alligator...';
myString.replace(/^\w/, (c) => c.toUpperCase());
myString = ' the quick green alligator...';
myString.trim().replace(/^\w/, (c) => c.toUpperCase());Copyright © 2021 Codeinu
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