how to change a variables value in javascript

Helpless Hornet answered on March 19, 2020 Popularity 10/10 Helpfulness 4/10

answer how to change a variables value in javascript

related change value of variable javascript

related JavaScript Change the Value of Variables

how to change a variables value in javascript

Comment

var variable = 10;

function start() {
  variable = 20;
}
console.log(variable + 20);

// Answer will be 40 since the variable was changed in the function

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: stackoverflow.com

Tags: javascript variables

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Contributed on Mar 19 2020

Helpless Hornet

0 Answers Avg Quality 2/10

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change value of variable javascript

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 Quas: HOW TO CHANGE OR UPDATE Variable VALUE in javascript?
 Ans: To change something First write the element 
Then the name and position of that element 
Then write that position with equal sign Then write what you want to change. 

example:
I have taken a variable which contains some names,Among these names I will change the name Rasel.Now we need to find out the index number of this Rasel,
 then we can change the name with the index number. Anything can be changed by this rule.*/

var friendsName = ['habib', 'iqbal', 'shorif', 'asraful', 'rasel', 'arif', 'deader' ];

var positionIndex = friendsName.indexOf('rasel'); /* find index number */
console.log(positionIndex); /* for output index number */
/* output index number
PS C:\javascript> node ans.js
4
PS C:\javascript> node ans.js */

friendsName[4] = 'saiful'; /* change this index number name  */
console.log(friendsName);  /* for output index number */


/* output change with this name 
 PS C:\javascript> node ans.js
[
  'habib',  'iqbal',
  'shorif', 'asraful',
  'saiful', 'arif',
  'deader'
]
PS C:\javascript>  */

Popularity 9/10 Helpfulness 3/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on Aug 10 2022

Md Iqbal Hossain

0 Answers Avg Quality 2/10

JavaScript Change the Value of Variables

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// 5 is assigned to variable x
let x = 5; 
console.log(x); // 5

// vaue of variable x is changed
x = 3; 
console.log(x); // 3

Popularity 9/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on May 20 2022

SAMER SAEID

0 Answers Avg Quality 2/10

how to change a variables value in javascript

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change value of variable javascript

JavaScript Change the Value of Variables

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