I have a String "SHELF-2-1-1-2-1", I need to remove "2" from that string and want the output to be "SHELF-1-1-2-1"
I tried:
var str = "SHELF-2-1-1-2-1";
var res = str.split("-");
How can I join the array to get "SHELF-1-1-2-1"?
4 Answers
This would work:
var str = "SHELF-2-1-1".split('-2').join('');
answered May 28, 2014 at 23:03
Andrew Eisenberg
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2 Comments
BrettFromLA
Wow, that's a smart answer! I was trying to solve it based on the code user3271040 put in his question, but yours circumvents that and is really simple. I'll remember that kind of approach!!
user3271040
what if in this case, "SHELF-2-1-1-2" it gives as "SHELF-1-1", while it should be "SHELF-1-1-2"
Sounds like you want to do a replace... Try:
var res = str.replace('-2', '');
3 Comments
Fernando Carvalhosa
This is the cleanest answer IMO
jumxozizi
It turns "SHELF-2-10-20" into "SHELF-100" which may not be wanted. And it's possible that only the first instance is supposed to be replaced. The question is quite unclear.
Stijn de Witt
No, it turns
"SHELF-2-10-20" into "SHELF-10-20". By default. replace only replaces the first occurrence. To perform a global replace, the first parameter needs to be a regular expression with the g flag applied.var str = "SHELF-2-1-1";
var res = str.split("-");
res.pop(res.indexOf('2'));
var newStr = res.join('-');
This should also work for your updated question, as it will only remove the first 2 from the string
Comments
let str = "Hello India";
let split_str = str.split("");
console.log(split_str);
let join_arr = split_str.join("");
console.log(join_arr);
2, or whatever character is in the 7th position? Will it always be a single character that is being removed, or will it sometimes be more than one character?str.replace("-2","")?