classNameFactory: Allow (& ignore) all sorts of falsy values (#1427)
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@ -141,7 +141,7 @@ export const compileStyle = (style: Style) => {
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*/
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export const classNameToSelector = (name: string, prefix = "") => name.split(" ").map(n => `.${prefix}${n}`).join("");
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type ClassNameFactoryArg = string | string[] | Record<string, unknown>;
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type ClassNameFactoryArg = string | string[] | Record<string, unknown> | false | null | undefined | 0 | "";
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/**
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* @param prefix The prefix to add to each class, defaults to `""`
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* @returns A classname generator function
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@ -154,9 +154,9 @@ type ClassNameFactoryArg = string | string[] | Record<string, unknown>;
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export const classNameFactory = (prefix: string = "") => (...args: ClassNameFactoryArg[]) => {
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const classNames = new Set<string>();
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for (const arg of args) {
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if (typeof arg === "string") classNames.add(arg);
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if (arg && typeof arg === "string") classNames.add(arg);
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else if (Array.isArray(arg)) arg.forEach(name => classNames.add(name));
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else if (typeof arg === "object") Object.entries(arg).forEach(([name, value]) => value && classNames.add(name));
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else if (arg && typeof arg === "object") Object.entries(arg).forEach(([name, value]) => value && classNames.add(name));
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}
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return Array.from(classNames, name => prefix + name).join(" ");
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};
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