How to replace string in Javascript

Question

I am trying to replace 'hi' with 'hi'

My JavaScript:

var obj = {item:{title: params.title,description: params.text, link: req.headers['origin']+"/blog/blog-description/"+params.blog_id, guid:req.headers['origin']+"/blog/blog-description/"+params.blog_id}};

var xml2js = require('xml2js');     
var builder = new xml2js.Builder();
var xml = builder.buildObject(obj);
var modXml = xml.replace('<?xml version="1.0" encoding="UTF-8" standalone="yes"?>', '');
var modXml = xml.replace(/<(?:.|\n)*?>/gm, '');         
var new_text = modXml;

fs.readFile('public/feed.xml', function read(err, data) {
    if (err) throw err;
    var file_content = data.toString();
    var c = file_content.indexOf('</description>');
    var position = c + 14;
    file_content = file_content.substring(position);
    var file = fs.openSync('public/feed.xml','r+');
    var bufferedText = new Buffer(new_text+file_content);
    fs.writeSync(file, bufferedText, 0, bufferedText.length, position);
    fs.close(file);
});

i didnt know where it went wrong can someone suggest help.

So what issue are you running across? I don't see a question here. — Jacob
– Jacob, Commented Aug 22, 2016 at 6:45
Instead of replacing the header, just call new xml2js.Builder({headless: true}); — baao
– baao, Commented Aug 22, 2016 at 7:28

Manchikanti Aishwarya · Accepted Answer · 2016-08-23 06:56:22Z

2

Try this:

xml.split('<p>hi</p>').join('hi');

answered Aug 23, 2016 at 6:56

Manchikanti Aishwarya

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Comments

baao · Accepted Answer · 2016-08-22 07:37:06Z

1

xml2js replaces your  tag with  (and the  with ), so you need to replace the replaced string. Also, call Builder() with the headless: true option - then you don't need to replace the header. The following works:

var obj = {item:{title: '<p>foobarbaz</p>',description: "<p>foo</p>", link: "<p>bar</p>", guid:"<p>baz</p>"}};

var xml2js = require('xml2js');
var builder = new xml2js.Builder({ headless: true });
var xml = builder.buildObject(obj);
var modXml = xml.replace(/&lt;p&gt;|&lt;\/p&gt;/gm, '');
console.log(modXml);

Output:

<item>
  <title>fobaba</title>
  <description>foo</description>
  <link>bar</link>
  <guid>baz</guid>
</item>

answered Aug 22, 2016 at 7:37

baao

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4 Comments

MMR Over a year ago

Thanks a lot ,,,,,,,

MMR Over a year ago

Is it possible to append only first 100 words of my description.

baao Over a year ago

Sure, use substring: str.substring(0, 99)

MMR Over a year ago

Thanks,how to replce only tag in xml

Chris · Accepted Answer · 2016-08-22 06:45:51Z

1

Since replace is returning a string object, you can simply chain the calls:

Have you tried:

var modXml = xml.replace('<p>', '').replace("</p>",'');

I think you could also condense it into one regular expression.

answered Aug 22, 2016 at 6:45

Chris

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Comments

MoLow · Accepted Answer · 2016-08-22 06:47:29Z

1

you could either use a regex to strip tags, or use a library such as striptags

optional regex:

var text = '<p>aaa</p>';
console.log(text.replace(/<(?:.|\n)*?>/gm, ''));

striptags library could be used to strip all tags, or only specific tags:

var text = '<p>aaa</p>';
striptags(html);
striptags(html, ['p']);

answered Aug 22, 2016 at 6:47

MoLow

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5 Comments

MMR Over a year ago

Thank you,MoLow but it says replace is not deined

MoLow Over a year ago

that means your variable is not a string. in your case, try xml.replace(/<(?:.|\n)*?>/gm, '')

MMR Over a year ago

still it is not removing i will edit the code pls have a look

MoLow Over a year ago

I don't see any problem. maybe the html tags you are trying to replace are in file_content, and not in new_text?

MMR Over a year ago

Molow,i replaced the step here,but not wrking var file_content = data.toString(); var file_content = file_content.replace(/<(?:.|\n)*?>/gm, ''); var c = file_content.indexOf('</description>');

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