106 lines
2.4 KiB
Plaintext
106 lines
2.4 KiB
Plaintext
/* @flow strict */
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/* eslint-disable no-nested-ternary */
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import { pluralize } from './pluralize';
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import type { Thunk, ObjMap } from './definitions';
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export function resolveMaybeThunk<+T>(thingOrThunk: Thunk<T>): T {
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// eslint-disable-line
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return typeof thingOrThunk === 'function' ? (thingOrThunk: any)() : thingOrThunk;
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}
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export function camelCase(str: string): string {
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return str
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.replace(/(?:^\w|[A-Z]|\b\w)/g, (letter, index) =>
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index === 0 ? letter.toLowerCase() : letter.toUpperCase()
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)
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.replace(/\s+/g, '');
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}
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export function getPluralName(name: string): string {
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return pluralize(camelCase(name));
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}
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export function upperFirst(str: string): string {
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return str.charAt(0).toUpperCase() + str.slice(1);
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}
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export function clearName(str: string): string {
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return str.replace(/[^_a-zA-Z0-9]/g, '');
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}
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export function omit(obj: Object, keys: string | string[]) {
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if (!obj) {
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return {};
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}
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const result = { ...obj };
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if (Array.isArray(keys)) {
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keys.forEach(k => {
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delete result[k];
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});
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} else {
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delete result[keys];
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}
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return result;
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}
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export function only(obj: Object, keys: string | string[]) {
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if (!obj) {
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return {};
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}
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const result = {};
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if (Array.isArray(keys)) {
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keys.forEach(k => {
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if ({}.hasOwnProperty.call(obj, k)) {
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result[k] = obj[k];
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}
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});
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} else if ({}.hasOwnProperty.call(obj, keys)) {
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result[keys] = obj[keys];
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}
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return result;
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}
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function inspectObject(value: Object): string {
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let name;
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if (value && value.constructor && value.constructor.name) {
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name = value.constructor.name;
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}
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const props = `{ ${Object.keys(value)
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.map(k => `${k}: ${inspect((value: any)[k])}`)
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.join(', ')} }`;
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return name ? `${name}(${props})` : props;
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}
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/**
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* Used to print values in error messages.
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*/
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export function inspect(value: mixed): string {
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return value && typeof value === 'object'
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? typeof value.inspect === 'function'
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? (value: any).inspect()
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: Array.isArray(value)
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? `[${value.map(inspect).join(', ')}]`
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: inspectObject(value)
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: typeof value === 'string'
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? `"${value}"`
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: typeof value === 'function'
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? `[function ${value.name}]`
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: String(value);
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}
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export function forEachKey<V>(
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arrayOrObject: { [key: string]: V } | ObjMap<V>,
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callback: (value: V, key: string) => void
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): void {
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Object.keys(arrayOrObject).forEach(key => {
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callback(arrayOrObject[key], key);
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});
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}
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