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<h1 class="page-title">Source: reverse.js</h1>
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<pre class="prettyprint source linenums"><code>import isArray from './isArray';
import isNumber from './isNumber';
import isString from './isString';
/**
*@description 将字符串, 数字或者数组进行反序输出
*
* @param {*} v 要返回其自身反序的操作
* @return {*} {(Array<any> | string | number | null)} 返回一个数组,或字符串,数字
* @example reverse("abcdef") => "fedcba"
*/
const reverse = (v) => {
if (isArray(v)) {
return v.reverse(); //如果是数组默认使用reverse
}
else if (isNumber(v) || isString(v)) {
let arr = ('' + v).split('');
let result = '';
for (let i = arr.length - 1; i >= 0; i--) {
result += arr[i];
}
return isNumber(v) ? Number(result) : result;
}
return null;
};
export default reverse;
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