23 lines
925 B
Markdown
23 lines
925 B
Markdown
### toTitleCase
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Converts a string to title case.
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The algorithm featured here breaks down as follows:
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1. Break the string into words, using a [Regular Expression](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions)
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2. Capitalize each of them
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3. Stich them back together, using the whitespace `' '` character as a separator
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```js
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const toTitleCase = str => str
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.match(/[A-Z]{2,}(?=[A-Z][a-z]+[0-9]*|\b)|[A-Z]?[a-z]+[0-9]*|[A-Z]|[0-9]+/g)
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.map(x => x.charAt(0).toUpperCase() + x.slice(1).toLowerCase())
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.join(' ');
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```
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```js
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toTitleCase('some_database_field_name'); // 'Some Database Field Name'
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toTitleCase('Some label that needs to be title-cased'); // 'Some Label That Needs To Be Title Cased'
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toTitleCase('some-package-name'); // 'Some Package Name'
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toTitleCase('some-mixed_string with spaces_underscores-and-hyphens'); // 'Some Mixed String With Spaces Underscores And Hyphens'
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```
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