remove characters from string javascript code example

Example 1: how to remove lasr char from string in javascript

str=str.slice(0, -1);

Example 2: delete first character javascript

let str = 'Hello';
 
str = str.slice(1);
console.log(str);
 
/*
    Output: ello
*/

Example 3: remove first char javascript

let str = 'Hello';
 
str = str.substring(1);
console.log(str);
 
/*
    Output: ello
*/

Example 4: javascript replace

var res = str.replace("find", "replace");

Example 5: js remove string from string

var ret = "data-123".replace('data-','');
console.log(ret);   //prints: 123

Example 6: javascript remove character from string

mystring.replace(/r/g, '')