Why Does 1+1 Equal 11? Or How Do I Convert A String To A Number?
Sep 2, 2006
Javascript variables are loosely typed: the conversion between a
string and a number happens automatically. Since plus (+) is also
used as in string concatenation, `` Ƈ' + 1 '' is equal to `` ཇ' '': the
String deciding what + does. To overcome this, first convert the
string to a number. For example:
When I used toFixed() method on a number, I thought that this method round a number to a specified approximation, but I got a surprising result, the number became string! 15.23689.toFixed(2) ==> "15.24". So does it convert the number into string?
Now I need to convert a number(decimal) into a hex.string. I want to pass my blurit() two colors and have it start at color one and step its way to color two based on a determined step. I need to convert the new color to a hex string to be used to control the color of text. This is a rough example of what I am doing:
I'm trying to write code to swap images in a list. It's going to be a star rating control that highlights stars as you hover over a star. each image in the list has an onmouseover="highlight(this)" function and a unique id of 1 - 10.
Code: function highlight(star) { var num = Number(star.id); for (i = 0; i < num; i++)
[Code].....
I'm trying to convert the number 'i' used by the for loop to a string so it can be used by the getElementById() method to select the stars to be highlighted. But my intellisense is telling me there is a problem with that line. I tried
I used the command toUTCString() with a Date() object and now I would like to extrapolate the hour, to convert the string in number and to save it into a new javascript variable.Esampre:
For example, I have <span id="convert">1</span> somewhere on my page. Notice the "1", I want to covert "1" into let's say "John" every time the "1" is within a span tag with "convert" as the id. I also want "2" to be converted to "Pete". And "3" to be converted to "Bob".
I have a quastion, I am currently passing in a number as a string to my function (this is hard to change since its a program that generates the numbers).
For example i pass the number function random('252'), but what I want is this function random(252).
So my quastion is, do you guys have a clever idea on how to take this string, this ascii number and convert it to its "real" integer value, so that i can make correct calculations?
I am new with java and now i have an assignment to convert an improper fraction like 9/5 into a mixed number 1 4/5. I got how to convert it but if i have 4/5 and the output should give back 4/5 not 0 4/5.
Is there any way I could solve this problem? (I haven't learn "if then" yet? Just start from beginning
I've found some routines on the 'net that will convert 7-bit ascii to hex, but I'm interested in converting all valid javascript characters (16-bit unicode) into hex. and with javascript.
Say I had a bunch of elements with id names "id1", "id2". "id3" etc. Then say I had a function that adds a click handler such that when you click these elements it gets the id name with this.attributes[1].nodeValue;Then say I had a bunch of arrays with the same names as the ids var id1 = ["data", false, 45]; var id2 = ["otherdata", true, 15]; var id3 = ["otherotherdata", null, 65];. How would I set a variable "currentid" to the array with the corresponding name as the id name? I guess the underlying question is, how would I convert a string to a variable name?
I am designing a feedback page for my website and have carried info through the url to the feedback page from a previous page. This url contains a name of an individual, in between two symbols = and &
The url of the feedback page looks something like this:[URL].... First, I have used a form to display the information so that the user can see who they have selected, ie. extract the first and last names from the url. (The script following the form extracts the name from the url so that it can be displayed by the form, not exactly sure why it does so in this particular order but it seems to work so far).
I'm triying to convert a string (0000, 0001, 0002, 0003,0004,0007, ..., ... )in INT. Betwen 0000 and 0007 theres no problem. But the 0008 is converted to 1. I'm using
The values I have in variable "tables".I want to create variable list which takes values from "tables".Than I want to split this, and put each value in to new array: I've started with:
var list = "tables"; var listArray = list.split("|"); for(i=0; i < listArray.length;i++)[code].....
I need a way to convert the ID on line 9 into a string which can be used as a variable on line 10. Is this possible? I'm truly sorry if this ends up as a double-post. My browser froze up on the last one and I'm pretty sure it never went through)