en.javascript.info/1-js/4-data-structures/8-array-methods/1-camelcase/task.md

importance: 5

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Translate border-left-width to borderLeftWidth

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';