用lodash替換字符串

我有一個對象具有幾個屬性，我想在字符串中替換。用lodash替換字符串

replaceBy:{ 
      "PRS_JOBS_MAQUINA":"PRS_JOBS_WORKCENTER", 
      "CD_MAQ":"CD_WKC", 
      "DT_INI_MAQ":"DT_INI_WKC", 
      "DT_INI_JM" :"DT_INI_JW" 
      }

有沒有雄辯的方法來做到這一點與lodash？這裏是字符串

" 

AND (CD_JOB, DT_INI_JOB) IN (SELECT x.CD_JOB, x.DT_INI_JM FROM PRS_JOBS_MAQUINA x WHERE x.EMPRESA = ':EMPRESA' AND x.CD_MAQ = ':CD_MAQ' AND TO_CHAR(x.DT_INI_MAQ, 'YYYY-MM-DD') = ':DT_INI_MAQ' 
AND TO_CHAR(x.DT_INI_JM, 'YYYY-MM-DD') = '1900-01-01' AND x.DT_FIM IS NULL)

「

來源

2016-09-29 Leonel Matias Domingos

那你試試？ – Slavik

爲什麼要使用圖書館？對於（var rb in replaceBy）str = str.replace（new RegExp（rb，「g」），replaceBy [rb]）;' – mplungjan

pure javascript：http://es6fiddle.net/itoeawvc/（僅替換第一次發生每個關鍵碼） –

解決方案：

var yourString = 'your string'; 
_.forEach(replaceBy, function(value, key) { 
    yourString = _.replace(string, key, value); 
});

來源

2016-09-29 13:43:00

雖然這可能回答這個問題，但它沒有提供任何上下文來解釋如何或爲什麼。考慮增加一兩句話來解釋你的答案。 – brandonscript

爲什麼要使用一個庫

var replaceBy={ 
 
       "PRS_JOBS_MAQUINA":"PRS_JOBS_WORKCENTER", 
 
       "CD_MAQ":"CD_WKC", 
 
       "DT_INI_MAQ":"DT_INI_WKC", 
 
       "DT_INI_JM" :"DT_INI_JW" 
 
       }, str= "AND (CD_JOB, DT_INI_JOB) IN (SELECT x.CD_JOB, x.DT_INI_JM FROM PRS_JOBS_MAQUINA x WHERE x.EMPRESA = ':EMPRESA' AND x.CD_MAQ = ':CD_MAQ' AND TO_CHAR(x.DT_INI_MAQ, 'YYYY-MM-DD') = ':DT_INI_MAQ' AND TO_CHAR(x.DT_INI_JM, 'YYYY-MM-DD') = '1900-01-01' AND x.DT_FIM IS NULL)" 
 

 
for (var rb in replaceBy) { 
 
    str = str.replace(new RegExp(rb, "g"),replaceBy[rb]); 
 
} 
 
console.log(str)

來源

2016-09-29 13:45:17 mplungjan

您可以使用String.prototype.replace()與包含所有搜索詞的正則表達式，並使用replace回調替換它們：

function replaceByMap(str, replaceBy) { 
 
    var search = new RegExp(Object.keys(replaceBy).join('|'), 'g'); // creates a regexp of the strings to replace 
 

 
    return str.replace(search, function(match) { // iterates the string, and replace the strings found with their replacements from the map 
 
    return replaceBy[match]; 
 
    }); 
 
} 
 

 
var replaceBy = { 
 
    "PRS_JOBS_MAQUINA": "PRS_JOBS_WORKCENTER", 
 
    "CD_MAQ": "CD_WKC", 
 
    "DT_INI_MAQ": "DT_INI_WKC", 
 
    "DT_INI_JM": "DT_INI_JW" 
 
}; 
 

 
var str = "AND (CD_JOB, DT_INI_JOB) IN (SELECT x.CD_JOB, x.DT_INI_JM FROM PRS_JOBS_MAQUINA x WHERE x.EMPRESA = ':EMPRESA' AND x.CD_MAQ = ':CD_MAQ' AND TO_CHAR(x.DT_INI_MAQ, 'YYYY-MM-DD') = ':DT_INI_MAQ' AND TO_CHAR(x.DT_INI_JM, 'YYYY-MM-DD') = '1900-01-01' AND x.DT_FIM IS NULL)"; 
 

 
var result = replaceByMap(str, replaceBy); 
 
console.log(result);

來源

2016-09-30 04:32:50

用lodash替換字符串

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