bc518174
 王天杨
提交两个项目文件
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import * as React from 'react';
/**
* Takes an argument and if it's an array, returns the first item in the array,
* otherwise returns the argument. Used for Preact compatibility.
*/
export var unwrapArray = function unwrapArray(arg) {
return Array.isArray(arg) ? arg[0] : arg;
};
/**
* Takes a maybe-undefined function and arbitrary args and invokes the function
* only if it is defined.
*/
export var safeInvoke = function safeInvoke(fn) {
if (typeof fn === 'function') {
for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
args[_key - 1] = arguments[_key];
}
return fn.apply(void 0, args);
}
};
/**
* Sets a ref using either a ref callback or a ref object
*/
export var setRef = function setRef(ref, node) {
// if its a function call it
if (typeof ref === 'function') {
return safeInvoke(ref, node);
} // otherwise we should treat it as a ref object
else if (ref != null) {
ref.current = node;
}
};
/**
* Simple ponyfill for Object.fromEntries
*/
export var fromEntries = function fromEntries(entries) {
return entries.reduce(function (acc, _ref) {
var key = _ref[0],
value = _ref[1];
acc[key] = value;
return acc;
}, {});
};
/**
* Small wrapper around `useLayoutEffect` to get rid of the warning on SSR envs
*/
export var useIsomorphicLayoutEffect = typeof window !== 'undefined' && window.document && window.document.createElement ? React.useLayoutEffect : React.useEffect;
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