大约有 30,000 项符合查询结果（耗时：0.0479秒） [XML]
How can I display just a portion of an image in HTML/CSS?
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Just to clarify, you’d set the width and height of the container td, div, span or whatever to 50px to make this work.
– Paul D. Waite
Apr 27 '09 at 8:38
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How to solve error “Missing `secret_key_base` for 'production' environment” (Rails 4.1)
...server execute:
$ RAILS_ENV=production rake secret
This returns a large string with letters and numbers. Copy that, which we will refer to that code as GENERATED_CODE.
Login to your server
If you login as the root user, find this file and edit it:
$ vi /etc/profile
Go to the bottom of the fi...
How can I write a heredoc to a file in Bash script?
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This line is indented.
EOF
Note that the final 'EOF' (The LimitString) should not have any whitespace in front of the word, because it means that the LimitString will not be recognized.
In a shell script, you may want to use indentation to make the code readable, however this can have t...
MongoDB/Mongoose querying at a specific date?
...younger than the specified date, which is probably not what OP wanted. Consider adding a "lt" option like the other answers.
– BenSower
May 2 '16 at 10:48
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How to overload functions in javascript?
... key value
obj.data("key");
If the first argument passed to .data() is a string and the second argument is undefined, then the caller must be using this form.
// set the value associated with a particular key
obj.data("key", value);
If the second argument is not undefined, then set the value ...
Determining the current foreground application from a background task or service
...ts it, then you can easily access details of the foreground app/activity:
String foregroundTaskPackageName = foregroundTaskInfo .topActivity.getPackageName();
PackageManager pm = AppService.this.getPackageManager();
PackageInfo foregroundAppPackageInfo = pm.getPackageInfo(foregroundTaskPackageName,...
How to sort an array based on the length of each element?
... method to sort the array. A sorting function that considers the length of string as the sorting criteria can be used as follows:
arr.sort(function(a, b){
// ASC -> a.length - b.length
// DESC -> b.length - a.length
return b.length - a.length;
});
Note: sorting ["a", "b", "c"] by l...
Format date to MM/dd/yyyy in JavaScript [duplicate]
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Correct answer should be var result = ((date.getMonth().toString().length > 1) ? (date.getMonth() + 1) : ('0' + (date.getMonth() + 1))) + '/' + ((date.getDate().toString().length > 1) ? date.getDate() : ('0' + date.getDate())) + '/' + date.getFullYear()
–...
How set background drawable programmatically in Android
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Another way to achieve it is to use the following:
final int sdk = android.os.Build.VERSION.SDK_INT;
if(sdk < android.os.Build.VERSION_CODES.JELLY_BEAN) {
layout.setBackgroundDrawable(ContextCompat.getDrawable(context, R.drawable.ready) );
} else {
layout.setBackground(ContextCompat.ge...
Is there a way of having git show lines added, lines changed and lines removed?
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If you want to know the lines added/changed/deleted by a commit with
id commit-id, you could use
git show commit-id --stat
or
git diff commit-id-before commit-id --stat
If you wat to know the lines added/changed/deleted by a range
commits, you could use
git diff commit-id1 commit-id2 --s...