根據一條線:

s = "Test abc test test abc test test test abc test test abc";

这似乎只是在上面的行中删除ABC的第一次出现:

s = s.replace('abc', '');

如何替代所有事件?


当前回答

首頁 〉外文書 〉文學 〉文學 〉In string first element search and replace

此分類上一篇: 開發人員: 開發人員: 開發人員: 開發人員: 開發人員: 開發人員: 開發人員: 開發人員: 開發人員: 開發人員: 開發人員: 開發人員:

在线全球搜索和替换

var str = '[{"id":1,"name":"karthikeyan.a","type":"developer"}' var j = str.replace(/\"\][g,'[').replace(/\]\"/g,']'); console.log(j,'//global search and replace')

其他回答

// 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);

可以用常见的表达方式实现这一点,有几种可以帮助某人:

var word = "this,\\ .is*a*test,    '.and? / only /     'a \ test?";
var stri = "This      is    a test         and only a        test";

取代所有非阿尔法字符,

console.log(word.replace(/([^a-z])/g,' ').replace(/ +/g, ' '));
Result: [this is a test and only a test]

用一个空间替换多个连续空间,

console.log(stri.replace(/  +/g,' '));
Result: [This is a test and only a test]

取代所有 * 字符,

console.log(word.replace(/\*/g,''));
Result: [this,\ .isatest,    '.and? / only /     'a  test?]

取代问题标志(?)

console.log(word.replace(/\?/g,'#'));
Result: [this,\ .is*a*test,    '.and# / only /     'a  test#]

取代引用标志,

console.log(word.replace(/'/g,'#'));
Result: [this,\ .is*a*test,    #.and? / only /     #a  test?]

要取代所有“字符”,

console.log(word.replace(/,/g,''));
Result: [this\ .is*a*test    '.and? / only /     'a  test?]

替换一个特定的词,

console.log(word.replace(/test/g,''));
Result: [this,\ .is*a*,    '.and? / only /     'a  ?]

取代Backslash。

console.log(word.replace(/\\/g,''));
Result: [this, .is*a*test,    '.and? / only /     'a  test?]

以替代前滑,

console.log(word.replace(/\//g,''));
Result: [this,\ .is*a*test,    '.and?  only      'a  test?]

替换所有空间,

console.log(word.replace(/ /g,'#'));
Result: [this,\#.is*a*test,####'.and?#/#only#/#####'a##test?]

替换点,

console.log(word.replace(/\./g,'#'));
Result: [this,\ #is*a*test,    '#and? / only /     'a  test?]

以下功能为我工作:

String.prototype.replaceAllOccurence = function(str1, str2, ignore)
{
    return this.replace(new RegExp(str1.replace(/([\/\,\!\\\^\$\{\}\[\]\(\)\.\*\+\?\|\<\>\-\&])/g,"\\$&"),(ignore?"gi":"g")),(typeof(str2)=="string")?str2.replace(/\$/g,"$$$$"):str2);
} ;

现在,请称这些功能如下:

"you could be a Project Manager someday, if you work like this.".replaceAllOccurence ("you", "I");

简单地复制并将此代码插入您的浏览器控制台进行测试。

与常规表达的i旗案例不敏感

console.log('App started'.replace(/a/g, '')) // Result: "App strted"
console.log('App started'.replace(/a/gi, '')) // Result: "pp strted"

可替代的独特价值

String.prototype.replaceAll = function(search_array, replacement_array) { // var target = this; // search_array.forEach(function(substr, index) { if (typeof replacement_array[index]!= "undefined") { target = target.replace(new RegExp(substr, 'g'), replacement_array[index] ) }); // return target; }; // Use: var replacedString = "This topic commented o