是否有一个 JavaScript 库包含一组丰富的非常高级的常用函数?

发布于 2024-08-29 15:07:40 字数 237 浏览 4 评论 0原文

我发现大多数知名的 javascript 库(例如 jquery、YUI...等)都缺少许多高级函数。以字符串操作为例,startsWith、endsWith、contains、lTrim、rTrim、trim、isNullOrEmpty...等。这些功能其实都是很常见的。

我想知道是否存在一个 javascript 库/ javascript 库插件可以填补这些空白(包括但不限于字符串操作)?

如果库不重写原型那就太好了。

I find that many high level functions are missing in most well-known javascript libraries such as jquery, YUI...etc. Taking string manipulation as an example, startsWith, endsWith, contains, lTrim, rTrim, trim, isNullOrEmpty...etc. These function are actually very common ones.

I would like to know if there exists a javascript library/ plugin of a javascript library that fills these gaps (including but not limited to string manipulation)?

It would be great if the library does not override the prototype.

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梦冥 2024-09-05 15:07:40

看看 underscore.js (遗憾的是,没有字符串操作,但有很多其他好东西)。

Take a look at underscore.js (sadly, no string manipulation, but lots of other good stuff).

灼疼热情 2024-09-05 15:07:40

大多数字符串函数都可以使用与字符串对象关联的其他方法来使用,例如,

var myString = 'hello world';

myString.indexOf('hello') == 0; //same as startsWith('hello');

如果您愿意,您可以将这些函数包装到其他函数中。我认为向字符串对象添加原型将是到达那里的方法,并且您找到的任何库都可能会沿着这条路线走下去。

Most of those string functions are available using other methods associated with the string object eg

var myString = 'hello world';

myString.indexOf('hello') == 0; //same as startsWith('hello');

You could wrap these functions up into other functions if you wish. I think adding prototypes to the string object would be the way to go there and any libraries you find will probably go down that route anyway.

遮云壑 2024-09-05 15:07:40

ms ajax core 库包含所有这些字符串方法以及日期方法等基本上是将 .net 引入 js 的勇敢尝试。

您不需要加载整个 MS Ajax js 堆栈,只需加载核心文件。

The ms ajax core library contains all of those string methods as well as date methods etc. basically a valiant attempt at bringing .net to js.

You don't need to load the entire MS Ajax js stack, just the core file.

没企图 2024-09-05 15:07:40

如果您不想扩展原型,所有这些都可以使用包装器轻松实现。

var StringWrapper = (function(){
    var wrapper = {
        string: null,
        trim: function(){
            return this.string.replace(/^\s+|\s+$/g, "");
        },
        lTrim: function(){

        }
    };

    return function(string){
        wrapper.string = string;
        return wrapper;
    };
})();

StringWrapper("   aaaa bbbb    ").trim(); /// "aaaa bbbb"

函数仅创建一次,因此非常高效。但是在辅助对象上使用包装器确实会产生一次额外的函数调用。

All of this is easily implemented with wrappers if you don't want to extend the prototype

var StringWrapper = (function(){
    var wrapper = {
        string: null,
        trim: function(){
            return this.string.replace(/^\s+|\s+$/g, "");
        },
        lTrim: function(){

        }
    };

    return function(string){
        wrapper.string = string;
        return wrapper;
    };
})();

StringWrapper("   aaaa bbbb    ").trim(); /// "aaaa bbbb"

The functions are only being created once, so its quite efficient. But using a wrapper over a helper object does incur one extra function call.

旧街凉风 2024-09-05 15:07:40

underscore.string 看起来可能适合您的需求。他们是这样描述的:

Underscore.string 是一个 JavaScript 库,用于舒适地操作字符串,Underscore.js 的扩展受到 Prototype.js、Right.js、Underscore 和漂亮的 Ruby 语言的启发。

Underscore.string 为您提供了几个有用的函数:capitalize、clean、includes、count、escapeHTML、unescapeHTML、insert、splice、startsWith、endsWith、titleize、trim、truncate 等。

underscore.string looks like it might suit your needs. Here's how they describe it:

Underscore.string is JavaScript library for comfortable manipulation with strings, extension for Underscore.js inspired by Prototype.js, Right.js, Underscore and beautiful Ruby language.

Underscore.string provides you several useful functions: capitalize, clean, includes, count, escapeHTML, unescapeHTML, insert, splice, startsWith, endsWith, titleize, trim, truncate and so on.

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