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camel-case.ts
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camel-case.ts
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import {CamelCase} from '../ts41/camel-case';
import {Split} from '../ts41/utilities';
import {expectType, expectAssignable} from 'tsd';
// Split
const prefixSplit: Split<'--very-prefixed', '-'> = ['', '', 'very', 'prefixed'];
expectType<['', '', 'very', 'prefixed']>(prefixSplit);
// CamelCase
const camelFromPascal: CamelCase<'FooBar'> = 'fooBar';
expectType<'fooBar'>(camelFromPascal);
const camelFromKebab: CamelCase<'foo-bar'> = 'fooBar';
expectType<'fooBar'>(camelFromKebab);
const camelFromComplexKebab: CamelCase<'foo-bar-abc-123'> = 'fooBarAbc123';
expectType<'fooBarAbc123'>(camelFromComplexKebab);
const camelFromSpace: CamelCase<'foo bar'> = 'fooBar';
expectType<'fooBar'>(camelFromSpace);
const camelFromSnake: CamelCase<'foo_bar'> = 'fooBar';
expectType<'fooBar'>(camelFromSnake);
const noDelimiterFromMono: CamelCase<'foobar'> = 'foobar';
expectType<'foobar'>(noDelimiterFromMono);
const camelFromMixed: CamelCase<'foo-bar_abc xyzBarFoo'> = 'fooBarAbcXyzBarFoo';
expectType<'fooBarAbcXyzBarFoo'>(camelFromMixed);
const camelFromVendorPrefixedCssProperty: CamelCase<'-webkit-animation'> = 'webkitAnimation';
expectType<'webkitAnimation'>(camelFromVendorPrefixedCssProperty);
const camelFromDoublePrefixedKebab: CamelCase<'--very-prefixed'> = 'veryPrefixed';
expectType<'veryPrefixed'>(camelFromDoublePrefixedKebab);
const camelFromRepeatedSeparators: CamelCase<'foo____bar'> = 'fooBar';
expectType<'fooBar'>(camelFromRepeatedSeparators);
// Verifying example
type CamelCasedProps<T> = {
[K in keyof T as CamelCase<K>]: T[K]
};
interface RawOptions {
'dry-run': boolean;
'full_family_name': string;
foo: number;
}
expectAssignable<CamelCasedProps<RawOptions>>({
dryRun: true,
fullFamilyName: 'bar.js',
foo: 123
});