newline

问题 I'm trying to split the text inside Splitting textarea data by new lines. My current code works, except for a small requirement: The resulting array must include empty lines as well. <script> $(function(){ var lines = []; $.each($('#data').val().split(/\n/), function(i, line){ if(line){ lines.push(line); } }); console.log(lines); }); </script> <textarea id="data"> I like to eat icecream. Dogs are fast. The previous line is composed by spaces only. The last 3 lines are empty. One last line. <

问题 I need to be able to take a text file with unknown encoding (e.g., UTF-8, UTF-16, ...) and copy it line by line, making specific changes as I go. In this example, I am changing the encoding, however there are other uses for this kind of processing. What I can't figure out is how to determine if the last line has a newline! Some programs care about the difference between a file with these records: Rec1<newline> Rec2<newline> And a file with these: Rec1<newline> Rec2 How can I tell the

问题 Good Day All! I have a batch script, and when I echo a variable like this echo %variable1% I get out put like this TestLine1 TestLine2 TestLine3 TestLine4 My goal would be to modify this variable to remove all the newline characters so the output would look more like TestLine1TestLine2TestLine3TestLine4 Is there a simple way to do this without creating files? Thank you for your assistance. 来源： https://stackoverflow.com/questions/47335326/how-to-remove-new-line-character-from-batch-variable

问题 I have an excel sheet that has cells with variable amounts of line breaks and I want to reduce it so that there is only one line break between each new line. For example HELLO WORLD GOODBYE will be modified to: HELLO WORLD GOODBYE I've been banging my head over this for hours and have come up with a few ways but none are very efficient or produce the best results. This is made especially difficult because I'm working with a dataset that has spaces preceeding the Line Breaks. And so a regular

问题 So, I've got the following code to write to a file: Formatter output = ....... // Creating the formatter works, writes to appropriate file. output.format("%d\n", records.length); for(GradeRecord gR:records) { output.format(gR.toString() + "\n"); } Only problem is, the output doesn't have newline characters. Doesn't work if I replace "\n" with "\r", either. ...I don't know why this doesn't work. Output is created and writes correctly. (I see the file created and everything is written in it,

问题 I am using live validation on my site (from livevalidation.com), I have a text area where I need to allow new line / line feed / return characters, but despite my best efforts I am failing miserably. I have tried \n \r \v \s\S each with \ escape and without. This is my code without the use of the above chars: my_notes.add( Validate.Format, { pattern: /^[a-zA-Z0-9ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝßàáâãäåæçèéêëìíîïñòóôõöøùúûüýÿ\.\,\-\/\']+[a-zA-Z0

问题 As I cannot find a decision for this, here is a simple question for Angular 6. I am using angular 6 with angular-notofier service and I am trying to show a simple multiline message for the user. I have tried using HTML tags <br/> and New line chars "\n" but with no success. Looks like there is string escaping against XSS or something and I cannot add a new line. Any ideas if I can do it that way OR if I am trying to do it in the wrong way (if so, then why is it wrong and how am I supposed to

问题 This question already has answers here : Why does scanf ask twice for input when there's a newline at the end of the format string? (6 answers) Closed 2 years ago . Suppose i write the code below: #include<stdio.h> int main() { int a,b; scanf("%d\n",&a); printf("%d",a); return 0; } The input is taken and the cursor is blinking in the next line without printing the value of a . But if I remove the \n character, it is printing the value of a automatically in the next line. Even if I place a \n

问题 I am using following code (simplified little bit) to get certificate string from X509 structure. Basically PEM_write_bio_X509 function. X509 *certificate... .... BIO *bio = BIO_new(BIO_s_mem()), BIO_vfree); if (!bio || !PEM_write_bio_X509(bio, certificate)) { // error handling } size_t keylen = BIO_pending(bio); unique_ptr<char[]> key(new char[keylen]); int len = BIO_read(bio, key.get(), (int)keylen); if (len <= 0) { // error handling } string result = string(key.get(), len); The result is

问题 I'm building an app using nodejs. I created a form, and I'm working on back-end validation of user input. Basically, I have a var, "messages", and each time I encounter an input error, I append the error to messages. var messages =""; errors.forEach(function(msgObject) { console.log(msgObject.message); messages += msgObject.message + "\r\n"; }) (I'm also using indicative -- http://indicative.adonisjs.com/ -- for error validation. It returns an array errors) I'm returning the errors to the