Name the JavaScript function that convert strings to float-00569
This subjective question is related to the book/course
vu cs401 Computer Architecture and Assembly Language Programming.
It can also be found in
vu cs401 Mid Term Solved Past Paper No. 4.
Question 1: Name the JavaScript function that convert strings to float numbers. How do you give the function a string value to convert to a number?
var c = '1234';
d = c * 1;
Since multiplying assumes numbers, JavaScript makes the string a number, if possible. If that isn't possible, the result is NaN. Note that you cannot do
var c = '1234';
d = c + 0;
Answer:
String to number
If you want to change a string to a number, first make sure there are only the characters 0-9 in the string. What I always do is simply multiplying the string by 1.var c = '1234';
d = c * 1;
Since multiplying assumes numbers, JavaScript makes the string a number, if possible. If that isn't possible, the result is NaN. Note that you cannot do
var c = '1234';
d = c + 0;
