用lodash替换字符串

我有一个对象具有几个属性，我想在字符串中替换。用lodash替换字符串

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

有没有雄辩的方法来做到这一点与lodash？这里是字符串

" 

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)

“

来源

2016-09-29 Leonel Matias Domingos

那你试试？ – Slavik

为什么要使用图书馆？对于（var rb in replaceBy）str = str.replace（new RegExp（rb，“g”），replaceBy [rb]）;' – mplungjan

pure javascript：http://es6fiddle.net/itoeawvc/（仅替换第一次发生每个关键码） –

解决方案：

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

来源

2016-09-29 13:43:00

虽然这可能回答这个问题，但它没有提供任何上下文来解释如何或为什么。考虑增加一两句话来解释你的答案。 – brandonscript

为什么要使用一个库

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)

来源

2016-09-29 13:45:17 mplungjan

您可以使用String.prototype.replace()与包含所有搜索词的正则表达式，并使用replace回调替换它们：

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);

来源

2016-09-30 04:32:50

用lodash替换字符串

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