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How to run Gulp tasks sequentially one after the other
... you return a stream in task one, e.g. return gulp.src('app/**/*.js').pipe(concat(app.js)).pipe(gulp.dest('app/scripts');, the key is to identify task one as a dependent when defining task two: gulp.task('two', ['one'], function() {... Task two will now wait for task one to end before running.
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Get last element of Stream/List in a one-liner
...akes a point, further the API documentation states that reduce("", String::concat) is an inefficient but correct solution for string concatenation, which implies maintenance of the encounter order.The intention is well-known,the documentation has to catch up.
– Holger
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How does the String class override the + operator?
...ls of the string conversion context.
15.18.1.
Optimization of String Concatenation :
An implementation may choose to perform conversion and concatenation
in one step to avoid creating and then discarding an intermediate
String object. To increase the performance of repeated string
conc...
Why doesn't JavaScript have a last method? [closed]
...
i = [].concat(loves).pop(); //corn
icon cat loves popcorn
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Is it better practice to use String.format over string Concatenation in Java?
Is there a perceptible difference between using String.format and String concatenation in Java?
14 Answers
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jQuery OR Selector?
... @alex: but it won't select the same element twice (which a concatenation operator would). It really is an OR selector because it creates a UNION of two or more sets (whereas AND is an intersection).
– cletus
Feb 15 '10 at 3:59
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How can I wait for set of asynchronous callback functions?
...sn't work inside .then functions for me. But you can use a .forEach and [].concat() or something similar)
Promise.all([
fetch('/user/4'),
fetch('/user/5'),
fetch('/user/6'),
fetch('/user/7'),
fetch('/user/8')
]).then(responses => {
return responses.map(response => {response.json()...
企业级负载平衡简介 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...间较长的情况。假设当前负载平衡服务器每秒钟会接收到50000个请求，而且该负载平衡服务器的会话过期时间为2分钟，那么其就需要保持6000000个会话。这些会话会占用负载平衡服务器的很大部分资源。而且在负载高峰期，其所...
How to display a specific user's commits in svn log?
...rlet sel -t -m 'log/logentry' \
--if "author = '<AUTHOR>'" \
-v "concat('Revision ', @revision, ' ', date)" -n -v msg -n -n
From here you could go into more advanced XML queries.
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How to sort a dataFrame in python pandas by two or more columns?
... pd.DataFrame(np.random.randint(1, 5, (10,2)), columns=['a','b'])
df1 = pd.concat([df1]*100000)
def pdsort(df1):
return df1.sort_values(['a', 'b'], ascending=[True, False])
def lex(df1):
arr = df1.values
return pd.DataFrame(arr[np.lexsort((-arr[:, 1], arr[:, 0]))])
assert (pdsort(df1)...