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可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I simply want to add a pause after each iteration of a jQuery each loop, I can't seem to figure it out. $(".item").each(function(i){ var el = this; var timer = setTimeout(function(){ $(el).trigger("click"); }, 500); }); This is not firing every 1/2 second, but rather triggering click on all items at once. I want something like this (pseudocode): $(".item").each(function(i){ $(this).trigger("click"); wait(500); // wait a half second before the next iteration }); Any working method of this? 回答1: You cannot really do this with $.each . You can

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: This may be a silly question but... Say you have a sentence like: The quick brown fox Or you might get a sentence like: The quick brown fox jumped over the lazy dog The simple regexp (\w*) finds the first word "The" and puts it in a group. For the first sentence, you could write (\w*)\s*(\w*)\s*(\w*)\s*(\w*)\s* to put each word in its own group, but that assumes you know the number of words in the sentence. Is it possible to write a regular expression that puts each word in any arbitrary sentence into its own group? It would be nice if you

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: How to prevent USER from doing automated posts/spam? Here is my way of doing it, new php session for each page request, which has its own limitations, no multitabing. I used new session for each page as defense against both CSRF and automated attacks. Lets say we have forum that uses AJAX to post threads and its validated by PHP SESSION. add_answer.php?id=123 ajax.php?id=123 Every thing works fine until the user opens page.php?id=456 on another tab, the ajax returns 'invalid request' on ajax.php?id=123 This is related to another question I

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I have a data frame in pandas where the index are business days. I want to create a new data frame using only the last day of each month, along with the corresponding data in the various columns. I have tried a few different ways with little success and the error message I keep getting is: AttributeError: 'DataFrame' object has no attribute 'date'. The index in my data frame is labeled 'Date'. Other than verifying that, I don't know where to go. Also, the dates in this column include hours, minutes, and seconds...not sure if that

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I have a data.frame file like this: input: 1 200 444 444 2 310 NA 444 3 310 NA 444 4 NA 444 444 5 200 444 444 6 200 NA 444 7 310 444 444 8 310 876 444 9 310 876 444 10 NA 876 444 I want to convert ecah character within each column as a sub-column and I want to put either 1 or zero in rows in the way that they represent if the the sub column was observed in that specific row or not: Output data.frame : c1 . 200 c1 . 310 c2 . 444 c2 . 876 c3 . 444 1 1 0 1 0 1 2 0 1 0 0 1 3 0 1 0 0 1 4 0 0 1 0 1 5 1 0 1 0 1 6 1 0 0 0 1 7 0 1 1 0 1 8 0

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am connecting to TCP/IP port in Asp.Net, basically i have attached a device on this port to which i am reading, it is working fine but on second time when tcp listener tries to start then it generates the above error. can any body guide me how can i get rid of this error here is my code that i am using to connect to TCP/IP port: try { byte[] ipaddress = new byte[4]; string ip = ConfigurationManager.AppSettings["IP"].ToString(); string[] ips = ip.Split('.'); ipaddress[0] = (byte)Convert.ToInt32(ips[0]); ipaddress[1] = (byte)Convert.ToInt32

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I would like to use pwelch on a set of signals and I have some questions. First, let's say that we have 32 (EEG) signals of 30 seconds duration. The sampling frequency is fs=256 samples/sec, and thus each signal has length 7680. I would like to use pwelch in order to estimate the power spectral density (PSD) of those signals. Question 1: Based on the pwelch 's documentation , pxx = pwelch(x) returns the power spectral density (PSD) estimate, pxx, of the input signal, x, found using Welch's overlapped segment averaging estimator.

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: country_name country_code val_code \ United States of America 231 1 United States of America 231 2 United States of America 231 3 United States of America 231 4 United States of America 231 5 y191 y192 y193 y194 y195 \ 47052179 43361966 42736682 43196916 41751928 1187385 1201557 1172941 1176366 1192173 28211467 27668273 29742374 27543836 28104317 179000 193000 233338 276639 249688 12613922 12864425 13240395 14106139 15642337 In the data frame above, I would like to compute for each row, the percentage of the total occupied by that val_code,

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: Here is a simple r question which basically pertains to correctly understanding list syntax I think. I have a series of matrices loaded into a list (following some preliminary calculations) which I then want to conduct some basic block averaging on. My basic workflow will be as follows: 1) Rounding each vector contained within a list to an integer corresponding to the number of blocks I am interested in averaging to. 2) Padding each vector in a list to this new length. 3) Conversion of each matrix in the list to a new matrix to

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I am having some real difficulty attempting to solve a JQuery $.each() iteration This is my array, limiting results for convenience [{ "GROUP_ID" : "143" , "GROUP_TYPE" : "2011 Season" , "EVENTS" :[ { "EVENT_ID" : "374" , "SHORT_DESC" : "Wake Forest" }, { "EVENT_ID" : "376" , "SHORT_DESC" : "Yale" }, { "EVENT_ID" : "377" , "SHORT_DESC" : "Michigan State" }] }, { "GROUP_ID" : "142" , "GROUP_TYPE" : "2010 Season" , "EVENTS" :[ { "EVENT_ID" : "370" , "SHORT_DESC" : "Duke" }, { "EVENT_ID" : "371" , "SHORT_DESC" : "Northwestern" }, {