Say for example I the following decimal value:
let myDecimal = 117.049701384;
I want to show the user 117.05 but without changing the original precise value above.
Basically what I want is to mimic Excel behaviour with decimals, where it displays a number with two decimals but holds all the decimals for math operations.
The reason I want to do this is because I want to keep the UI clean of huge decimals numbers, but also keeping the math operations that I have to perform as precise as possible. I guess I can duplicate variables but that sounds cumbersome and tedious.
Is that posible in Javascript?
I am using Javascript and VueJS 2.x in this App.
Thanks in advance.
Of course, you can use method toFixed().
For example:
let myDecimal = 117.049701384;
console.log(myDecimal.toFixed(2)); // 117.05use this where you return the mydecimal value back for the ui
mydecimal.tofixed(2)
If you want truncation with rounding then toFixed is the function
If you do not want rounding then you can always use regEx
let newVarT = (117.049701384).toFixed(2)-0
let newVarR = (117.049701384+"").match(/([\d]+\.[\d]{0,2})/)[1]-0
console.log( "toFixed", newVarT, "RegEx", newVarR );The ending -0 converts back to a number