numbers

how can i get the number from a div tag's id? example: <div id="button1"></div> how can i get the 1 and store it in a variable? var id = $("div").attr('id').replace(/button/, ''); Your "id" values cannot be purely numeric; they need to start with a letter or "_" like an identifier. ( Note : that's not true in HTML5 documents.) Once you've got a number in your "id" value like that, you would just use the jQuery attr() function to get the id: var theId = parseInt($('div.whatever').attr('id').replace(/[^\d]/g, ''), 10); // replace all non-digits with nothing alert($('div').attr("id").replace(/\D

Is there a built in function of JavaScript to convert a string into a particular locale (Euro in my case)? E.g. 50.00 should get converted to 50,00 € . Matt Ball 50.00 is a unit-less value. The best you can do is convert 50.00 to 50,00 and then append the € yourself. Therefore, just use Number.toLocaleString() . var i = 50.00; alert(i.toLocaleString() + ' €'); // alerts '50.00 €' or '50,00 €' Demo → Lots of relevant questions: How can I format numbers as money in JavaScript? (the big one; ~70k views) Convert to currency format Format currency using javascript how do i print currency format in

Is there a simple way to convert a high number e.g. 14120000 into 14.12 million format with PHP? I've been looking at number_format but it doesn't seem to offer this function, also thought about sub_str to separate the digits out, but thought there might be a better way? Try this from, https://php.net/manual/en/function.number-format.php#89888 : <?php function nice_number($n) { // first strip any formatting; $n = (0+str_replace(",", "", $n)); // is this a number? if (!is_numeric($n)) return false; // now filter it; if ($n > 1000000000000) return round(($n/1000000000000), 2).' trillion'; elseif

How to restrict the input field to enter only numbers/digits int and float both. Sometimes we need to allow both integer as well as float value for fields like amount, so in that case the validation is required. There are no of solutions available but they are of large size code. So need a short but effective code. <p> Input box that accepts only valid int and float values.</p> <input class="number-only" type=text /> No need for the long code for number input restriction just try this code. It also accepts valid int & float both values. Javascript Approach onload =function(){ var ele =

I'm fairly new to VB.net (self taught) and was just wondering if someone out there could help me out with some code. I'm not trying to do anything too involved, just have a TextBox that accepts a numeric value from 1 to 10. I don't want it to accept a string or any number above 10. If someone types a word or character an error message will appear, telling him to enter a valid number. This is what I have; obviously it's not great as I am having problems. Thanks again to anyone who can help. If TxtBox.Text > 10 Then MessageBox.Show("Please Enter a Number from 1 to 10") TxtBox.Focus() ElseIf

In php is there a way to give a unique hash from a string, but that the hash was made up from numbers only? example: return md5(234); // returns 098f6bcd4621d373cade4e832627b4f6 but I need return numhash(234); // returns 00978902923102372190 (20 numbers only) the problem here is that I want the hashing to be short. edit: OK let me explain the back story here. I have a site that has a ID for every registered person, also I need a ID for the person to use and exchange (hence it can't be too long), so far the ID numbering has been 00001, 00002, 00003 etc... this makes some people look more

I'm trying to get the value of a number to 2 dec places from my xml. XML: <Quantity>0.0050</Quantity> XSL: <xsl:value-of select="format-number($quantity, '####0.00')" /> However XSL seems to have a problem with this value and outputs 0.00 in one area of the page and 0.01 in the other. Of course in this situation it is favourable to have 0.01 output in all areas. Another area has the value 4.221 yet the XSL is outputting 4.23 . I do realise that format-number as a method converts a number to a string. Not sure how to fix this. EDIT: Ok after a bit of mucking around i found that this works: <xsl

My question is: How can I generate non-repetitive random numbers in numpy? list = np.random.random_integers(20,size=(10)) If you don't insist on using NumPy, you can use random.sample() from the standard library: print random.sample(range(20), 10) With NumPy, you will have to use numpy.random.shuffle() and slicing: a = numpy.arange(20) numpy.random.shuffle(a) print a[:10] strnam I think numpy.random.sample doesn't work right, now. This is my way: import numpy as np np.random.choice(range(20), 10, replace=False) You can get this by sorting as well: random_numbers = np.random.random([num_samples