Replace String Value With Javascript Object

February 15, 2024 Post a Comment

I am currently making a small module for NodeJs. For which I need a small help. I will tell it like this. I have a variable with string. It contains a string html value. Now I need

Solution 1:

You can use a simple template function using regex,

var replacer = function(tpl, data) {
  var re = /\$\(([^\)]+)?\)/g, match;
  while(match = re.exec(tpl)) {
    tpl = tpl.replace(match[0], data[match[1]])
    re.lastIndex = 0;
  }
  return tpl;
}

use like

var result = replacer(html, { "title" : "my title", "text" : "text is this" });

jsfiddle

detail here

EDIT

Actually as torazaburo mentioned in the comment, it can be refactored as

var replacer = function(tpl, data) {
    return tpl.replace(/\$\(([^\)]+)?\)/g, function($1, $2) { return data[$2]; });
}

jsfiddle

hope this helps

Baca Juga

Solution 2:

Since you are using ES6 template string you can use a feature called 'tagged template strings'. Using tagged template strings you are allowed to modify the output of a template string. You create tagged template string by putting a 'tag' in front of the template string, the 'tag' is a reference to a method that will receive the string parts in a list as the first argument and the interpolation values as remaining arguments. The MDN page on template strings already provides an example template string 'tag' that we can use:

functiontemplate(strings, ...keys) {
  return (function(...values) {
    var dict = values[values.length - 1] || {};
    var result = [strings[0]];
    keys.forEach(function(key, i) {
      var value = Number.isInteger(key) ? values[key] : dict[key];
      result.push(value, strings[i + 1]);
    });
    return result.join('');
 });
}

You use the 'tag' by calling:

var tagged = template`<!DOCTYPE html><htmllang="en"><head><metacharset="UTF-8"><title>Document ${'title'}</title></head><body><h1>Test file, ${'text'}</h1></body></html>`;

Notice that interpolation of variables uses the syntax ${'key'} instead of $(key). You can now call the produced function to get the desired result:

tagged({ "title" : "my title", "text" : "text is this" });

Run the code example on es6console

Solution 3:

var binddingData=function(id,data){
    var me=this,
        arr=[];
    arr=getControlBindding(id);
    arr.forEach(function(node){
        var content=getBinddingContent(node.getAttribute('DataTemp'),data);
        binddingToHtml(node,content);
    })

}
var getControlBindding=function(id){
    var me=this;
    returndocument.querySelectorAll('[DataTemp]');
}


var getBinddingContent=function(temp,data){
    var me=this,
        res='',
        hasNull=false;
    if(temp==null||typeof temp=='undefined'){
            return res;
        }
    res= temp.replace(/\$\{([^\}]+)?\}/g, function($1, $2) { 
        if(data[$2]==null||typeof data[$2]=='undefined'){
            hasNull=true;
        }
        return data[$2]; 
    });
    return hasNull?'':res;

}

var binddingToHtml=function(node,content){
    var me=this;
    if(node.getAttribute('IsDateTime')){
        node.innerText='';//if u want change it to datetime stringreturn;
    }
    if(node.getAttribute('AddBr') && content==''){
        node.innerText='';
        var brTag=document.createElement('br');
        node.appendChild(brTag);
        return;
    }
   node.innerText=content;
}

You use the 'tag' by calling:

<div DataTemp="${d1}"></div> 
    <div DataTemp="${d2}"></div>
    <div DataTemp="${d3}"></div> 
    <div DataTemp="${d3}+ +${d1}"></div> 
    <div DataTemp="${d3}/${d1}"></div>     
    <div DataTemp="${d4}\${d1}"></div>     
    <div DataTemp="(${d5}\${d1})"></div> 
    <div DataTemp="(${d3}\${d1})"></div>

with data var data={d1:'t1',d2:'t2',d3:'t3'}

javascript sammlung

Replace String Value With Javascript Object

Solution 1:

Solution 2:

Solution 3:

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