I have a string stored in a variable var = "4.25 houses".
I would like to only extract the currency value, ie "4.25" from this. Is this possible? Also I would like to divide and multiply the new variable I get... does this number need to be converted or something?
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?
View 6 Replies View RelatedWhat would be the best way to convert a month number to its corresponding
string? I.e, 3 -> 'March'. Is there a builtin function or must I use a
lookup table or something?
How to convert Number to String in Javascript.
View 2 Replies View RelatedNow 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:
function blurit(color1, color2) {
colorstep= (color2-color1) /10; clr=color;
for (lp=0; lp<10; lp++) {
test.innerHTML+= '<font color="#' +dex(clr) +'">'
clr+= colorstep;
}}
I have a string, an example below, I want to extract the number from it.
Code:
<p class="the-price">€15.00</p>
<p class="gbox"><!--<a href="#"><span>Arrange<br>
Cover</span></a>--></p>
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
var id = String(i+1);
but this didn't work either.
what have I gotten wrong?
I have a string "Slide1.jpg"
I need to increment it by 1 to say "Slide2.jpg"
I have split and sliced but I keep getting SlideNaN.jpg
Rather then fix my mess of code... There has to be a simple way of doing this..
I have a string:
Code:
var str = "6, 14, 2, 23, 121, 137, 342, 453, 543, 4, 762"
Var num = 2;
I want to check if num exists in str.
Is there any javascript function to do this?
How can I check if a number exists by itself in this string by using
the RegExp object?
var mystring = "11,111,01,011";
var match = "1";
var re = new RegExp( match );
var isFound = re.test( mystring ) );
Running this code returns 'true' which is not what I want since number
one doesn't exist by itself. I need to use the "match" variable since
it will change depending on user input.
I can only get it to work without variables in the expression. E.g.
var re = new RegExp( /1/ );
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:
if I have an array where the number are write in string format, how can I recognize when a string is in realty a number? example if I have this:
"50"
"house"
"light"
"100blue"
"yellow20"
"-100"
"20,5"
how can with a cicle to extract only:
50
-100
20,5
?
I want to turn the string "100,144" to numbers, to use for
resizeTo(100,144) <--- here.
How to check that a text field is a string not a number with javascript? Therefore,if the field is a number then I want to display a message that contain "You must enter a string".
var str = champ.value;
if (!(isNaN(str))) {
alert("Vous avez saisi un nombre");
I tried the previous code but it does not work.
I'm looking for a way to grab a number from a string, although this number
is not at either end of the string.
Here is the string in question: var el = "v4Function_Name('argument3')"
Here is a substring that returns the number ( the 3 ) successfully...
var number = el.substring(el.lastIndexOf("ent")+3,el.length-2);
Seems very ineffecient to do it this way, and better to find a lean elegant
way using replace(); How does one go about getting a value inside of a
string with regular expressions? .. or is there a better way?
Here are a couple of the many expressions I have failed with...
var pat = /^[^ent][0-9]*$"/;
var pat = /v4Function_Name('argument([^0-9]+)'/;
var number = el.replace(pat,"");
Got a bit of a weird issue in IE 8 with this code:
jQuery.getJSON
"/v.f", { do: "wiki_ajax", id: jQuery
this
.val
, field: "1" }, function
[Code]...
Any jquery plugin can check number of word in a string instead using of .length?[code]
View 16 Replies View RelatedI have a JS function which checks whether the directory field value entered starts with an alphabet or number only. Following is the code using regular expression.
function testpw() {
var un = document.getElementById("dir").value;
if (/^[^A-Za-z0-9]/.test(un)) { // only a-z0-9 allowed as first character
[code]......
method which only accepts "/ktp/knas/" as the starting value and anything after that. ie it should accept /ktp/knas/*, rest everything is not accepted.
I have an Adobe pdf fill-able form field that requires a distance computation using javascript. One of the values needed in the computation is in the format of a string as feet - inches (for example: 4'-10"). I need to convert this into a number to use to complete a computation. Any code snippet or ideas on how to do this.
View 3 Replies View RelatedI am working on form validation, i want to validate "Name" input field value . I want that in "Name" input field no number can be input.
Is there any function which search number/s from string ?? i.e if user inputs any number in that field with string i can display error message(Name can't be alpha numeric).
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:
PHP Code:
<html>
<body>
<script type="text/javascript">[code]....
because 'ora' is not rigth when I use DST in my script.I am writing a code into a file .php then I can use php as well into the script.
IE 7 is throwing a JS error and I can't figure out why (probably because I am new to JS). FF and IE8 do not throw any JS errors. The JS error I get looks like this:
Line: 42
Char: 3
Error: Expected identifier, string or number
Code: 0
URL: http://dev.emsketch.com/
I'm not sure which JS file this error file is referencing.
I have got this xml file which has a background params which is <background>igmp:
{theme.background_video_ip}:1234</background>.
I have done the validation to check if the igmp protocol is used like this
if (clientSpecificData.background.substr(0, 7) == "igmp:") {
Right now I am trying to find out how I can use regular expressions to check whether a port number is used at the end.
I have this script that is supposed to check if a number the user guesses is the same as the randomly generated number.Problem is that the random number generated at the start of the program keeps on changing everytime I click on the "Check if I'm right" button, the random number gets generated again and I never ever get to reach the correct answer
HTML CODE
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
[code].....
Hello everyone... I've got a question about an onKeyUp event. I'm using a text box that HAS to be a negative number therefore it has to have a - sign in front of the number. Can someone point me in the right direction as to how to write a function to do this? Thanks so much...
View 5 Replies View RelatedI am working on trying to create a Picture Bingo JavaScript. I am using the standard Bingo Card Generator and it works great however, I need help coding the script so that the number are associated with a picture for example everytime number 12 would show up on the card an image would replace the number. Here is the code that I am using:
[Code]...