Add capitalize() util.
rodzic
f4bdeb134f
commit
c525ba1548
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@ -1,4 +1,5 @@
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import {
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capitalize,
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flatten,
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float,
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inclusiveRange,
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@ -51,3 +52,10 @@ test("toFriendlyDecimal() works", () => {
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test("withoutNulls() works", () => {
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expect(withoutNulls([1, 2, 0, null, 3])).toEqual([1, 2, 0, 3]);
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});
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test("capitalize() works", () => {
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for (let boop of ["boop", "BOOP", "Boop", "bOoP"]) {
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expect(capitalize(boop)).toBe("Boop");
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}
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expect(capitalize("")).toBe("");
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});
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@ -132,3 +132,11 @@ export function withoutNulls<T>(arr: (T | null)[]): T[] {
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export function lerp(a: number, b: number, amount: number) {
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return a + amount * (b - a);
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}
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/**
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* Capitalize the given word, forcing the first letter to
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* uppercase and the rest to lowercase.
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*/
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export function capitalize(value: string) {
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return value.slice(0, 1).toUpperCase() + value.slice(1).toLowerCase();
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}
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