Recently, a friend of a computer appeared a more strange problem, every time you open the page, when you want to enter text, switch input computer will be stuck to death, half a day no response, no way can only enter task Manager, will cause no response to the end of the Web page can solve the problem, do not know what is going on?
According to the user's tips, the author opens the webpage in its computer, first uses the mouse to click in the lower r
Preliminary Idea: textbox. readonly = true; but in this way, even card swiping input will be disabled.
The second idea is to determine whether the keyboard is input or the user swiping the card, but how to determine whether the keyboard input should trigger a keydown event
HTML page code example:div class="wrap">input type="text" id="bankCard" placeholder="输入银行卡号">div>div class="wrap">input type="text" id="moneyNum" placeholder="输入金额">div>Format the bank card number (each four-bit sub-group) $("#bankCard").on("keyup", formatBC); function formatBC(e){$(this).attr("data-oral", $(this).val().replace(/\ +/g,""));//$("#bankCard").a
JS uses regular expressions to control users' input of bank card numbers and formatting. js bank cards
// Js Regular Expression for controlling and formatting the user's input bank card number
The above section describes how to use regular expressions to control the user's input
We want to enter the bank card number in order to display in the format, rather than simply display a bunch of numbers, the following section of code to implement the bank card number format input.
Format of the bank card numberpublic void Bankcardnumaddspace (final edittext medittext) {Medittext.addtextchangedlistene
Scheme one: Change the cell format to "text" and re-enter it!
Option 2:1, address the problem of input ID number
By default, if the number of digits entered in the current cell in Excel is more than 11 digits (excluding 11-bit), the system displays the numbers entered in the scientific notation format, and when the number of digits entered exceeds 15 digits (excluding 15-bit), the system displays all 15-digit numbers as "0". This way, if we want to
//JS Regular implementation of user input bank card number control and formatJS Regular implementation of user input bank card number control and format
On the Web page, the simulation to achieve the function of the Bank client: Four words separated and can only enter the number, there are two ways to test compatible with the mainstream PC browser; On the phone, some manufacturers will appear randomly added some charactersWeb-side Implementation input card number four words separated
expressed as 8 bits. When the grayscale of the image has more precise requirements, it can be represented by 10-bit, 12-bit, etc. Color Image: Color image can be composed of RGB (YUV) 3 colors, according to its brightness level of different 8-8-8,10-10-10 and other formats. (3) Number of transmission channels when a high-resolution image is taken at a higher rate, a high output rate is generated, which generally requires simultaneous output of multiple signals, and the image capture
In some applications that use sound cards for audio collection, there are usually the following functional requirements: when the program starts, it is required that a specific input terminal be automatically selected for the sound card-for example, some common collection programs want to use "line in" as the default input, and some video conferencing software, y
We often encountered in the project needs to format the amount and the bank card number, generally we usually have two kinds of manifestation: the input box formatting and the input box outside formatting. Here I mainly in the project encountered in the internal format of the input box, the code light out, the box outs
// determine the legitimacy of the bank card number input // Parameters: Enter the bank card number to determine if the bank card number is a valid bank card number (YES is legal)-(BOOL) Checkcardno: (nsstring*) Cardno;View Code determines the legitimacy interface of the ban
1. Create two global variables to comply with Uitextfield agentsNSString *_previoustextfieldcontent;Uitextrange *_previousselection;2. Add an event setting agent to the TextField of the input bank card number _bankcardnumtextfield.delegate=self[_bankcardnumtextfield addtarget:self Action: @selector (Reformatasbankcardnumber:) forControlEvents: Uicontroleventeditingchanged];3. Paste the following code in
This article describes the JS implementation of the analog bank card account input display effect. Share to everyone for your reference, specific as follows:
First look at the running effect screenshot as follows:
The online demo address is as follows:
http://demo.jb51.net/js/2015/js-mn-bank-card-input-style-codes
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