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 have a phone number field on my form that needs validation, but I'm not sure how to code this. I have the following function to validate a first name is entered and last name. The phone number field must match a 7 digit or 10 digit(with area code)phone number. I want to be able to include paranthese and/or hyphens for the valid phone number.
function checkForm1() {
if (document.forms[0].firstname.value.length == 0) {
alert("You must put in a first name");
[code]....
I have a simple form with a sum.
Sum is 4 + 1 = ... the answer will of course be 5.
Does any one know of a simple tutorial where a specific number can be entered into a text field. If number is incorrect it pops up a simple error box.
I have an input type=text with value={date}. User scrolls his mouse wheel on it. I need to see what is character number in the text field (in Firefox it's evt.rangeOffset). How to get that in Chrome?
Below is the code.
<script>
attach = function(){
dateField= document.getElementById('a');
dateField.onmousewheel=handleEvent;
} handleEvent = function(evt){
//???????????????????????
//how to get character number on text field?
}
</script>
<body onload="attach()">
<input type=text value="01-10-2010" name=a id=a >
</body>
so I have a widget that will let you get alerts texted to a phone. I am trying to store the info, but I can't get the user's input into my javascript function shown below:
onClick="collect('info', 'nname=' + document.getObjectByID('Nname').value + ';num=12345;
How can I get the content as a string of a text field and use that in my function? Like I said, this is probably a relatively easy question for most, but I cannot figure it out :/
I am trying to find a way to get more than one characters pasted on html text field (input type=text), using onkeydown or onkeypress, I am NOT interested in onkeyup(it works), so please do not suggest me this solution. Also I am not interested in Jquery, I do not like to use it. I need solution to work with all browsers.
I am able to do that if you type one character, by taking the character of the event, but till now I am unable to get group of characters come from the paste (ctrl+V) or by mouse.You can look at Facebook search menu that shows auto complete results, it works on events: onkeydown and onkeypress and you notice that you get the result before you release your finger, try to paste something (more than one character) and you get the result before releasing finger, how? Onkeypress and onkeydown do not show first thing you paste or type because they happen before the text being added to text field.
Code:
<input type="text" id="targetTextField" onkeydown="CapturePastedString(this.id)" /> <script> function CapturePastedString(id){ var targetTextField=document.getElementById(id); // below I need to capture the pasted string like: var pasted_string= function(){.....} targetTextField.value=pasted_string; } </script>
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 RelatedI have a text field (field1) already displayed on the HTML page. However, there's a link where you can add additional text fields to the page as well. When the link is clicked, the second text field is added successfully (field2), and when the link is clicked again, the third text field (field3) is added successfully. However, the third field does not add itself to the page, and the text for anything greater than a third field also isn't displayed after. This obviously means that my "fields" variable is not working right
<script language="javascript">
fields = 1;
function addMore() {
if (fields = 1) {
document.getElementById('addedMore').innerHTML = "<input type='text' name='field2' size='25' /> <span>Field 2.</span>";
[Code]....
I am working on a Phone Number Form. The link of script: [url]
Questions:
(1)I wanted to know if code this script so that instead of the phone number appearing as: (123)456-7890
So that it appears as: (123) 456-7890 with a blank space after the ")"
(2)If that's simple, is there a way to error-check it so that only numbers can be entered into the phone number input field?
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 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?
I have a website containing 26 subdirectories 'a' to 'z'
On the home page I want a text field and submit button
If someone for example types 'j' it will go to the 'j' folder home page
Does anyone know where I might find code like this?
What 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.
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 Related