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coerce values to string in str prelude functions

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This commit is contained in:
Chris Wanstrath 2025-11-07 15:16:59 -08:00
parent afaedeea23
commit fd3c5da59b
1 changed files with 21 additions and 21 deletions
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42
src/prelude/str.ts
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@ -1,37 +1,37 @@
// strings // strings
export const str = { export const str = {
join: (arr: string[], sep: string = ',') => arr.join(sep), join: (arr: string[], sep: string = ',') => arr.join(sep),
split: (str: string, sep: string = ',') => str.split(sep), split: (str: string, sep: string = ',') => String(str ?? '').split(sep),
'to-upper': (str: string) => str.toUpperCase(), 'to-upper': (str: string) => String(str ?? '').toUpperCase(),
'to-lower': (str: string) => str.toLowerCase(), 'to-lower': (str: string) => String(str ?? '').toLowerCase(),
trim: (str: string) => str.trim(), trim: (str: string) => String(str ?? '').trim(),
// predicates // predicates
'starts-with?': (str: string, prefix: string) => str.startsWith(prefix), 'starts-with?': (str: string, prefix: string) => String(str ?? '').startsWith(prefix),
'ends-with?': (str: string, suffix: string) => str.endsWith(suffix), 'ends-with?': (str: string, suffix: string) => String(str ?? '').endsWith(suffix),
'contains?': (str: string, substr: string) => str.includes(substr), 'contains?': (str: string, substr: string) => String(str ?? '').includes(substr),
'empty?': (str: string) => str.length === 0, 'empty?': (str: string) => String(str ?? '').length === 0,
// inspection // inspection
'index-of': (str: string, search: string) => str.indexOf(search), 'index-of': (str: string, search: string) => String(str ?? '').indexOf(search),
'last-index-of': (str: string, search: string) => str.lastIndexOf(search), 'last-index-of': (str: string, search: string) => String(str ?? '').lastIndexOf(search),
// transformations // transformations
replace: (str: string, search: string, replacement: string) => str.replace(search, replacement), replace: (str: string, search: string, replacement: string) => String(str ?? '').replace(search, replacement),
'replace-all': (str: string, search: string, replacement: string) => str.replaceAll(search, replacement), 'replace-all': (str: string, search: string, replacement: string) => String(str ?? '').replaceAll(search, replacement),
slice: (str: string, start: number, end?: number | null) => str.slice(start, end ?? undefined), slice: (str: string, start: number, end?: number | null) => String(str ?? '').slice(start, end ?? undefined),
substring: (str: string, start: number, end?: number | null) => str.substring(start, end ?? undefined), substring: (str: string, start: number, end?: number | null) => String(str ?? '').substring(start, end ?? undefined),
repeat: (str: string, count: number) => { repeat: (str: string, count: number) => {
if (count < 0) throw new Error(`repeat: count must be non-negative, got ${count}`) if (count < 0) throw new Error(`repeat: count must be non-negative, got ${count}`)
if (!Number.isInteger(count)) throw new Error(`repeat: count must be an integer, got ${count}`) if (!Number.isInteger(count)) throw new Error(`repeat: count must be an integer, got ${count}`)
return str.repeat(count) return String(str ?? '').repeat(count)
}, },
'pad-start': (str: string, length: number, pad: string = ' ') => str.padStart(length, pad), 'pad-start': (str: string, length: number, pad: string = ' ') => String(str ?? '').padStart(length, pad),
'pad-end': (str: string, length: number, pad: string = ' ') => str.padEnd(length, pad), 'pad-end': (str: string, length: number, pad: string = ' ') => String(str ?? '').padEnd(length, pad),
lines: (str: string) => str.split('\n'), lines: (str: string) => String(str ?? '').split('\n'),
chars: (str: string) => str.split(''), chars: (str: string) => String(str ?? '').split(''),
// regex // regex
match: (str: string, regex: RegExp) => str.match(regex), match: (str: string, regex: RegExp) => String(str ?? '').match(regex),
'test?': (str: string, regex: RegExp) => regex.test(str), 'test?': (str: string, regex: RegExp) => regex.test(String(str ?? '')),
} }