CODEWITHSUNDEEP
javascriptvariablesmath
Tarun Nagpal
Tarun Nagpal

Reputation: 700

JavaScript Store operations in variable ? Is it possible

Hello I have one code that performs an operation and show the result. Is it possible to store half operation in a variable and use it dynamically.?

Example

 result = (((Math.pow((1045.34/1000), (1/(18/12)))) -1)*4/3)*100;

I want to store "*4/3" in a variable and apply them like 

 var oper = "*4/3"
 result = (((Math.pow((1045.34/1000), (1/(18/12)))) -1)oper)*100;

ANy idea How to achieve this ?

Upvotes: 0

Views: 400

Answers (3)

ksbg
ksbg

Reputation: 3284

Using the eval function.

result = eval('(((Math.pow((1045.34/1000), (1/(18/12)) -1)' + oper + ')*100;');

Be careful though, eval can be dangerous. Check here if you want to know why.

Upvotes: 0

James Donnelly
James Donnelly

Reputation: 128786

Use a function?

function doStuff(stuff) {
    return stuff * 4 / 3;
}

var result = doStuff(((Math.pow((1045.34/1000), (1/(18/12)))) -1)) * 100;

Here we pass ((Math.pow((1045.34/1000), (1/(18/12)))) -1) into our doStuff() function, and that returns the result of that multiplied by 4 and divided by 3. We can then multiply it by 100 (as your question does).

result ends up with the value: 

-> 4.000365122980623

Upvotes: 2

Charkan
Charkan

Reputation: 841

You can use eval() function

var toto = "4/3";

alert(eval(toto));

Upvotes: 0

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