JavaScript中string类型基础知识 JavaScript如何将string类型转换为二进制数据...JavaScript如何将二进制数据转换为string类型本文与WebSocket并无太强关联,不过作为在WebSocket中传递二进制数据的基础知识储备,因此放入了此系列当中。...JavaScript如何将string类型转换为二进制数据了解了JavaScript中string类型的编码和在U...
.map(函数);--->数组中的每个元素都要执行这个函数,把执行后的结果重新的全部的放在一个新的数组中 .reverse();--->反转数组 .sort();---排序的,可能不稳定,如果不稳定,请写MDN中的那个固定的代码 .arr.slice(开始的索引,结束的索引);把截取的数组的值放在一个新的数组中,但是不包含结束的索引对应的元...
个人博客网:https://wushaopei.github.io/(你想要这里多有) 一、Math 1、Math对象的案例 varresult=Math.max(10,20,30,40);console.log(result);//40//例子:自己定义一个对象,实现系统的max的方法functionMyMath() {//添加了一个方法this.getMax=function() {//所有数字中的最大值varmax=arguments[0]...
So I assumed the second parameter with endsWith would follow the same pattern and it would be the reverse ending index 😅 That's why people always say, never "assume". Just when you think you know, you actually don't. So be humble and always keep a student mindset 🤓...
constreplace=require('gulp-replace');const{src,dest}=require('gulp');functionreplaceTemplate(){returnsrc(['file.txt']).pipe(replace('foo',functionhandleReplace(match){returnmatch.reverse();}).pipe(dest('build/'))};exports.replaceTemplate=replaceTemplate; ...
==r.slice(-5)&&(t=e),t&&"string"==typeof t&&(n=S.filter(t,n)),1<this.length&&(H[r]||S.uniqueSort(n),L.test(r)&&n.reverse()),this.pushStack(n)}});var P=/[^\x20\t\r\n\f]+/g;function R(e){return e}function M(e){throw e}function I(e,t,n,r){var i;try{...
JavaScript Proxy Objects Jun 23, 2020 How to accept unlimited parameters in a JavaScript function Jun 22, 2020 How to check if a value is a number in JavaScript Jun 21, 2020 How to reverse a JavaScript array Jun 20, 2020 The importance of timing when working with the DOM Jun 19,...
Get all preceding siblings of each element in the set of matched elements, optionally filtered by a selector, in the reverse document order.Traversing > Tree Traversal .prevUntil() Get all preceding siblings of each element up to but not including the element matched by the selector, DOM ...
JavaScript Proxy Objects Jun 23, 2020 How to accept unlimited parameters in a JavaScript function Jun 22, 2020 How to check if a value is a number in JavaScript Jun 21, 2020 How to reverse a JavaScript array Jun 20, 2020 The importance of timing when working with the DOM Jun 19,...
//1. length属性表示一个字符串的长度varstr="JavaScript"; console.log(str.length);//10//2. concat() 方法将一个或多个字符串与原字符串连接合并,形成一个新的字符串并返回。varstr="JavaScript"; console.log(str.concat("HTML","CSS"));//JavaScriptHTMLCSS//3. indexOf() 方法找字符串,从某个...