使用JavaScript从字符串中删除字符

Question

i have comma separated string like

var test = 1,3,4,5,6,

i want to remove particular character from this string using java script

can anyone suggests me?

Answer 1

JavaScript strings provide you with replace method which takes as a parameter a string of which the first instance is replaced or a RegEx , which if being global, replaces all instances.

Example:

var str = 'aba';
str.replace('a', ''); // results in 'ba'
str.replace(/a/g, ''); // results in 'b'

If you alert str - you will get back the same original string cause strings are immutable. You will need to assign it back to the string :

str = str.replace('a', '');

Answer 2

Use replace and if you want to remove multiple occurrence of the character use

replace like this

var test = "1,3,4,5,6,";
var newTest = test.replace(/,/g, '-');

here newTest will became "1-3-4-5-6-"

Answer 3

you can make use of JavaScript replace() Method

var str="Visit Microsoft!";
var n=str.replace("Microsoft","My Blog");

Answer 4

var test = '1,3,4,5,6';​​

//to remove character
document.write(test.replace(/,/g, '')); 

//to remove number
function removeNum(string, val){
   var arr = string.split(',');
   for(var i in arr){
      if(arr[i] == val){
         arr.splice(i, 1);
         i--;
      }
  }            
 return arr.join(',');
}

var str = removeNum(test,3);    
document.write(str); // output 1,4,5,6

Answer 5

You can also

var test1 = test.split(',');

delete test1[2];

var test2 = test1.toString();

Have fun :)

Answer 6

you can split the string by comma into an array and then remove the particular element [character or number or even string] from that array. once the element(s) removed, you can join the elements in the array into a string again

 


// Array Remove - By John Resig (MIT Licensed)
Array.prototype.remove = function(from, to) {
    var rest = this.slice((to || from) + 1 || this.length);
    this.length = from < 0 ? this.length + from : from;
    return this.push.apply(this, rest);
};

Answer 7

You can use this function

function removeComma(inputNumber,char='') {

        return inputNumber.replace(/,/g, char);
    }

Update

   function removeComma(inputNumber) {
        inputNumber = inputNumber.toString();
        return Number(inputNumber.replace(/,/g, ''));
    }