// Try this way

const str = "Test abc test test abc test test test abc test test abc";
const result = str.split('abc').join('');
console.log(result);

这里是一个非常简单的解决方案. 您可以将一个新方法分配给一个 String 对象

String.prototype.replaceAll = function(search, replace){
   return this.replace(new RegExp(search, 'g'), replace)
}

var str = "Test abc test test abc test test test abc test test abc";
str = str.replaceAll('abc', '');

console.log(str) // -> Test  test test  test test test  test test

String.prototype.replace 所有()

如果你不想处理替代() + RegExp。

但是,如果浏览器在2020年之前?

我推荐的替代All polyfill的选项:

替代All polyfill (与全球旗帜错误) (更多原则版)

if (!String.prototype.replaceAll) { // Check if the native function not exist
    Object.defineProperty(String.prototype, 'replaceAll', { // Define replaceAll as a prototype for (Mother/Any) String
        configurable: true, writable: true, enumerable: false, // Editable & non-enumerable property (As it should be)
        value: function(search, replace) { // Set the function by closest input names (For good info in consoles)
            return this.replace( // Using native String.prototype.replace()
                Object.prototype.toString.call(search) === '[object RegExp]' // IsRegExp?
                    ? search.global // Is the RegEx global?
                        ? search // So pass it
                        : function(){throw new TypeError('replaceAll called with a non-global RegExp argument')}() // If not throw an error
                    : RegExp(String(search).replace(/[.^$*+?()[{|\\]/g, "\\$&"), "g"), // Replace all reserved characters with '\' then make a global 'g' RegExp
                replace); // passing second argument
        }
    });
}

替代All polyfill (With handling global-flag missing by itself) (我的第一个偏好) - 为什么?

if (!String.prototype.replaceAll) { // Check if the native function not exist
    Object.defineProperty(String.prototype, 'replaceAll', { // Define replaceAll as a prototype for (Mother/Any) String
        configurable: true, writable: true, enumerable: false, // Editable & non-enumerable property (As it should be)
        value: function(search, replace) { // Set the function by closest input names (For good info in consoles)
            return this.replace( // Using native String.prototype.replace()
                Object.prototype.toString.call(search) === '[object RegExp]' // IsRegExp?
                    ? search.global // Is the RegEx global?
                        ? search // So pass it
                        : RegExp(search.source, /\/([a-z]*)$/.exec(search.toString())[1] + 'g') // If not, make a global clone from the RegEx
                    : RegExp(String(search).replace(/[.^$*+?()[{|\\]/g, "\\$&"), "g"), // Replace all reserved characters with '\' then make a global 'g' RegExp
                replace); // passing second argument
        }
    });
}

小型(我的第一个偏好):

if(!String.prototype.replaceAll){Object.defineProperty(String.prototype,'replaceAll',{configurable:!0,writable:!0,enumerable:!1,value:function(search,replace){return this.replace(Object.prototype.toString.call(search)==='[object RegExp]'?search.global?search:RegExp(search.source,/\/([a-z]*)$/.exec(search.toString())[1]+'g'):RegExp(String(search).replace(/[.^$*+?()[{|\\]/g,"\\$&"),"g"),replace)}})}

---

其他方法的聚合物分配

if (!String.prototype.replaceAll) {
    String.prototype.replaceAll = function(search, replace) { // <-- Naive method for assignment
        // ... (Polyfill code Here)
    }
}

for (var k in 'hi') console.log(k);
// 0
// 1
// replaceAll  <-- ?

非常可靠,但重

事实上,我提出的选项有点乐观,正如我们信任环境(浏览器和Node.js),它肯定是2012年至2021年左右。

此分類上一篇: HTTPS://polyfill.io

特别是替代:

<script src="https://polyfill.io/v3/polyfill.min.js?features=String.prototype.replaceAll"></script>

对抗全球常规表达:

anotherString = someString.replace(/cat/g, 'dog');

要取代所有类型的字符,请尝试此代码:

假设我们需要发送“和 \ 在我的行中,然后我们将转换“到“和 \ 到“。

因此,这种方法将解决这个问题。

String.prototype.replaceAll = function (find, replace) {
     var str = this;
     return str.replace(new RegExp(find.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&'), 'g'), replace);
 };

var message = $('#message').val();
message = message.replaceAll('\\', '\\\\'); /*it will replace \ to \\ */
message = message.replaceAll('"', '\\"');   /*it will replace " to \\"*/

我使用Ajax,我需要在JSON格式发送参数,然后我的方法看起来如下:

 function sendMessage(source, messageID, toProfileID, userProfileID) {

     if (validateTextBox()) {
         var message = $('#message').val();
         message = message.replaceAll('\\', '\\\\');
         message = message.replaceAll('"', '\\"');
         $.ajax({
             type: "POST",
             async: "false",
             contentType: "application/json; charset=utf-8",
             url: "services/WebService1.asmx/SendMessage",
             data: '{"source":"' + source + '","messageID":"' + messageID + '","toProfileID":"' + toProfileID + '","userProfileID":"' + userProfileID + '","message":"' + message + '"}',
             dataType: "json",
             success: function (data) {
                 loadMessageAfterSend(toProfileID, userProfileID);
                 $("#<%=PanelMessageDelete.ClientID%>").hide();
                 $("#message").val("");
                 $("#delMessageContainer").show();
                 $("#msgPanel").show();
             },
             error: function (result) {
                 alert("message sending failed");
             }
         });
     }
     else {
         alert("Please type message in message box.");
         $("#message").focus();

     }
 }

 String.prototype.replaceAll = function (find, replace) {
     var str = this;
     return str.replace(new RegExp(find.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&'), 'g'), replace);
 };

使用分割并加入:

var str = “测试 abc 测试 abc 测试 abc 测试 abc”; var replaced_str = str.split('abc').join(''); console.log(replaced_str);