大约有 6,888 项符合查询结果(耗时:0.0286秒) [XML]

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css3 drop shadow under another div, z-index not working [duplicate]

...blem is that the "middle" div is covering the drop shadow. i tried using z-index to put the header div about the middle div, but it's not working (the shadow is still being covered). when i put a break between the divs, i can see the shadow and therefore i know that part of the code is working prope...
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How to get value at a specific index of array In JavaScript?

I have an array and simply want to get the element at index 1. 5 Answers 5 ...
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Loop through list with both content and index [duplicate]

... for me to loop through a python list to get both the contents and their indexes. What I usually do is the following: 6 A...
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Add a reference column migration in Rails 4

...t; ActiveRecord::Migration def change add_reference :uploads, :user, index: true end end Then, run the migration using rake db:migrate. This migration will take care of adding a new column named user_id to uploads table (referencing id column in users table), PLUS it will also add an index...
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In an array of objects, fastest way to find the index of an object whose attributes match a search

...field' attribute: var elementPos = array.map(function(x) {return x.id; }).indexOf(idYourAreLookingFor); var objectFound = array[elementPos]; share | improve this answer | f...
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Is it possible to make an ASP.NET MVC route based on a subdomain?

...) { var url = httpContext.Request.Headers["HOST"]; var index = url.IndexOf("."); if (index < 0) return null; var subDomain = url.Substring(0, index); if (subDomain == "user1") { var routeData = new RouteData(this, new ...
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What is the most efficient way to loop through dataframes with pandas? [duplicate]

...s of pandas now include a built-in function for iterating over rows. for index, row in df.iterrows(): # do some logic here Or, if you want it faster use itertuples() But, unutbu's suggestion to use numpy functions to avoid iterating over rows will produce the fastest code. ...
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Filtering Pandas DataFrames on dates

... If date column is the index, then use .loc for label based indexing or .iloc for positional indexing. For example: df.loc['2014-01-01':'2014-02-01'] See details here http://pandas.pydata.org/pandas-docs/stable/dsintro.html#indexing-selection ...
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How to loop through array in jQuery?

...upported in any version of IE. jQuery.each: jQuery.each(substr, function(index, item) { // do something with `item` (or `this` is also `item` if you like) }); (Link to docs) Advantages: All of the same advantages as forEach, plus you know it's there since you're using jQuery. Disadvantages...
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git update-index --assume-unchanged on directory

... git update-index wants the file names on its command line, not on its standard input. Step 1: cd into the folder you want to assume is unchanged Step 2: You can do either this: git update-index --assume-unchanged $(git ls-files | ...