Remove a character at a certain position in a string - javascript
JavascriptStringJavascript Problem Overview
Is there an easy way to remove the character at a certain position in javascript?
e.g. if I have the string "Hello World"
, can I remove the character at position 3?
the result I would be looking for would the following:
"Helo World"
This question isn't a duplicate of https://stackoverflow.com/questions/9932957, because this one is about removing the character at a specific position, and that question is about removing all instances of a character.
Javascript Solutions
Solution 1 - Javascript
It depends how easy you find the following, which uses simple String methods (in this case slice()
).
var str = "Hello World";
str = str.slice(0, 3) + str.slice(4);
console.log(str)
Solution 2 - Javascript
You can try it this way:
var str = "Hello World";
var position = 6; // its 1 based
var newStr = str.substring(0, position - 1) + str.substring(position, str.length);
alert(newStr);
Here is a live example: http://jsbin.com/ogagaq
Solution 3 - Javascript
Turn the string into array, cut a character at specified index and turn back to string
let str = 'Hello World'.split('')
str.splice(3, 1)
str = str.join('')
// str = 'Helo World'.
Solution 4 - Javascript
If you omit the particular index character then use this method
function removeByIndex(str,index) {
return str.slice(0,index) + str.slice(index+1);
}
var str = "Hello world", index=3;
console.log(removeByIndex(str,index));
// Output: "Helo world"
Solution 5 - Javascript
var str = 'Hello World';
str = setCharAt(str, 3, '');
alert(str);
function setCharAt(str, index, chr)
{
if (index > str.length - 1) return str;
return str.substr(0, index) + chr + str.substr(index + 1);
}
Solution 6 - Javascript
you can use substring()
method. ex,
var x = "Hello world"
var x = x.substring(0, i) + 'h' + x.substring(i+1);
Solution 7 - Javascript
Hi starbeamrainbowlabs ,
You can do this with the following:
var oldValue = "pic quality, hello" ;
var newValue = "hello";
var oldValueLength = oldValue.length ;
var newValueLength = newValue.length ;
var from = oldValue.search(newValue) ;
var to = from + newValueLength ;
var nes = oldValue.substr(0,from) + oldValue.substr(to,oldValueLength);
console.log(nes);
I tested this in my javascript console so you can also check this out Thanks
Solution 8 - Javascript
var str = 'Hello World',
i = 3,
result = str.substr(0, i-1)+str.substring(i);
alert(result);
Value of i
should not be less then 1
.