Translate border-left-width to borderLeftWidth
importance: 5
Write the function camelize(str) that changes dash-separated words like “my-short-string” into camel-cased “myShortString”.
That is: removes all dashes, each word after dash becomes uppercased.
Examples:
camelize("background-color") == 'backgroundColor';
camelize("list-style-image") == 'listStyleImage';
camelize("-webkit-transition") == 'WebkitTransition';P.S. Hint: use split to split the string into an array, transform it and join back.
function camelize(str) {
return str
.split('-') // splits 'my-long-word' into array ['my', 'long', 'word']
.map(
// capitalizes first letters of all array items except the first one
// converts ['my', 'long', 'word'] into ['my', 'Long', 'Word']
(word, index) => index == 0 ? word : word[0].toUpperCase() + word.slice(1)
)
.join(''); // joins ['my', 'Long', 'Word'] into 'myLongWord'
}