Can I use replace with unknown string

Question

suppose i have string

'bold':'','Dateformat':'mm/dd/yyyy','Lowercase':''

or

'bold':'','Lowercase':'','Dateformat':'mm/dd/yyyy'

or

'Dateformat':'mm/dd/yyyy'

can be in any place within comma seperated string

and i want to replace

'Dateformat':'mm/dd/yyyy' with blank

and

mm/dd/yyyy

can be any string (dynamic value)

please tell me how to do that. Advance thanks for help.

why do I feel as though this is a JSON file or something – A. L May 29 '17 at 05:13 — A. L, May 29 '17 at 05:13

score 2 · Answer 1 · answered May 29 '17 at 04:21

2

Is this you wanted??

var str = "'bold':'','Dateformat':'mm/dd/yyyy','Lowercase':''";

var str_to_replace = "'Dateformat':'mm/dd/yyyy'";
var new_str = str.replace(str_to_replace,'');


console.log(new_str);

answered May 29 '17 at 04:21

Dinesh undefined

5,490
2
19
40

actually mm/dd/yyyy is dynamic value and this can be any other string depends on user input. i think i need to use regex there but i don't know how to use it. – Rikhi Sahu May 29 '17 at 04:25
https://stackoverflow.com/questions/15196451/regular-expression-to-validate-datetime-format-mm-dd-yyyy – Dinesh undefined May 29 '17 at 04:28
@Rik what do you mean by any other string? it will be any format of date? isn't it? – Alive to die - Anant May 29 '17 at 04:41
@Alive not necessary, it can be any thing. – Rikhi Sahu May 29 '17 at 05:08

score 2 · Accepted Answer · answered May 29 '17 at 04:42

2

You can create a Javascript object from the string and make the value of the key ""

var string = "'bold':'','Dateformat':'mm/dd/yyyy','Lowercase':''";
var obj = JSON.parse('{' + string.replace(/'/g, '"') + '}');
var obj2 = JSON.parse('{' + string.replace(/'/g, '"') + '}');

if (obj.Dateformat) {
  obj.Dateformat = '';
}

string = JSON.stringify(obj).replace("{", '').replace("}", '');

console.log(string);

//or delete the whole key

if (obj2.Dateformat) {
  delete obj2.Dateformat;
}

string = JSON.stringify(obj2).replace("{", '').replace("}", '');

console.log(string);

answered May 29 '17 at 04:42

sabithpocker

15,274
1
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@sabithpoker your code is good, but can you please tell me i am trying to use variable with obj like obj. but it looks for variable name insteadof value. – Rikhi Sahu May 29 '17 at 06:03
just ignore that, your code was helpful for me so i did accepted your answer. Thanks – Rikhi Sahu May 30 '17 at 13:04

Can I use replace with unknown string

2 Answers2