Example 1: javascript capitalize words
//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(); });
};
Example 2: javascript capitalize first letter
const lower = 'this is an entirely lowercase string';
const upper = lower.charAt(0).toUpperCase() + lower.substring(1);
Example 3: how to capitalize string in javascript
const name = 'flavio'
const nameCapitalized = name.charAt(0).toUpperCase() + name.slice(1)
Example 4: javascript first letter uppercase
const upperCase = function(names){
const toLower = names.toLowerCase().split(' ');
const namesUpper = [];
for(const wordName of toLower){
namesUpper.push(wordName[0].toUpperCase() + wordName.slice(1));
}
return namesUpper.join(' ');
}
Example 5: javascript capitalize first letter of each word
// includeAllCaps is optional and defaults to false
// if includeAllCaps is set to true, it will Title Case words with all capital letters
// includeMinorWords is optional and defaults to false
// if includeMinorWords is set to true, it will minor words in the middle of the string
function toTitleCase(str, includeAllCaps, includeMinorWords) {
includeAllCaps = (includeAllCaps ? (includeAllCaps == true ? true : false) : false);
includeMinorWords = (includeMinorWords ? (includeMinorWords == true ? true : false) : false);
var i, j, lowers;
str = str.replace(/([^\W_]+[^\s-]*) */g, function (txt) {
if (!/[a-z]/.test(txt) && /[A-Z]/.test(txt) && !includeAllCaps) {
return txt;
} else {
return txt.charAt(0).toUpperCase() + txt.substr(1).toLowerCase();
}
});
if (includeMinorWords) {
return str;
} else {
// Certain minor words should be left lowercase unless
// they are the first or last words in the string
lowers = ['A', 'An', 'The', 'And', 'But', 'Or', 'For', 'Nor', 'As', 'At',
'By', 'For', 'From', 'In', 'Into', 'Near', 'Of', 'On', 'Onto', 'To', 'With'
];
for (i = 0, j = lowers.length; i < j; i++)
str = str.replace(new RegExp('\\s' + lowers[i] + '\\s', 'g'),
function (txt) {
return txt.toLowerCase();
});
return str;
}
}
toTitleCase("FOO bar"); // FOO Bar
toTitleCase("FOO bar", true); // Foo Bar
toTitleCase("a foo bar"); // A Foo Bar
toTitleCase("a foo in bar"); // A Foo in Bar
toTitleCase("foo of bar"); // Foo of Bar
toTitleCase("foo of bar", false, true); // Foo Of Bar
Example 6: capitalize first carater js
String.prototype.capitalize = function() {
return this.charAt(0).toUpperCase() + this.slice(1)
}