random array

[xgqfrms]

"use strict";

/**
 * 
 * @author xgqfrms
 * @license MIT
 * @copyright xgqfrms
 * @created 2019-11-14
 * 
 * @description 
 * @augments 
 * @example 
 * @link https://github.com/haizlin/fe-interview#%E8%B5%B7%E6%BA%90
 * 
 */

const log = console.log;

const arr = [];
const recursiveFun = (arr = [], len = 5,  min = 2, max = 32) => {
    const rand = Math.floor(Math.random() * (max - min) + min);
    if(arr.length < len){
        if(!arr.includes(rand)){
            arr.push(rand);
        }
        recursiveFun(arr);
    }
}
recursiveFun(arr);

log(`random array`, arr);

https://github.com/haizlin/fe-interview#%E8%B5%B7%E6%BA%90

[xgqfrms]

haizlin/fe-interview#3 (comment)

[xgqfrms]

https://github.com/yygmind/blog/issues/5

https://github.com/haizlin/fe-interview/issues

https://github.com/qiu-deqing/FE-interview

https://github.com/Advanced-Frontend/Daily-Interview-Question

[xgqfrms]

"use strict";

/**
 * 
 * @author xgqfrms
 * @license MIT
 * @copyright xgqfrms
 * @created 2019-11-14
 * 
 * @description js 生成 2-32 之间的随机数
 * @augments 
 * @example 
 * @link https://github.com/haizlin/fe-interview#%E8%B5%B7%E6%BA%90
 * 
 */

let log = console.log;


const recursiveFun = (arr = [], len = 5, min = 2, max = 32) => {
    const rand = Math.floor(Math.random() * (max - min) + min);
    if(arr.length < len && !arr.includes(rand)){
        arr.push(rand);
        return recursiveFun(arr);
    } else {
        return arr;
    }
}

const arr = recursiveFun();
log(`random array`, arr);

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/random#Getting_a_random_integer_between_two_values

[xgqfrms]

{
    "JavaScript ES6 React Template": {
    "prefix": "js6r",
    "body": [
        "\"use strict\";",
        "",
        "/**",
        " * ",
        " * @author xgqfrms",
        " * @license MIT",
        " * @copyright xgqfrms",
        " * @created 2019-11-1$",
        " * ",
        " * @description $2",
        " * @augments $3",
        " * @example $4",
        " * @link $5",
        " * ",
        " */",
        "",
        "let log = console.log;",
        "",
        "const $2Generator = ($5datas = [], debug = false) => {",
        "    let result = ``;",
        "    // do something...",
        "    return $7result;",
        "};",
        "",
        "",
        "",
        "export default $2;",
        "",
        "export {",
        "    $2,",
        "};",
        "",
    ],
    "description": "JavaScript ES6 React Template & code snippets!"
    }
}

[xgqfrms]

js env check

"use strict";

/**
 * 
 * @author xgqfrms
 * @license MIT
 * @copyright xgqfrms
 * @created 2019-11-14
 * 
 * @description 写个方法判断当前脚本运行在浏览器还是node环境中 js
 * @augments 
 * @example 
 * @link https://github.com/haizlin/fe-interview/issues/1514#issuecomment-553188594
 * 
 */

let log = console.log;

log(`js env`, typeof window === 'undefined' ? 'Node' : 'Browser');


log(`Node global`, global);
log(`Browser window`, window);
// ReferenceError: window is not defined