大约有 15,208 项符合查询结果(耗时:0.0257秒) [XML]
How to create a simple map using JavaScript/JQuery [duplicate]
...nswer, ECMAScript 2015 (ES6) standard javascript has a Map implementation, read here for more info: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map
var map = new Object(); // or var map = {};
map[myKey1] = myObj1;
map[myKey2] = myObj2;
function get(k) {
ret...
Declaring Multiple Variables in JavaScript
...a matter of the few bytes saved, then maybe. But if you take into account readability and maintainability, I think you'll find that premature optimization is usually the wrong way to go, especially since modern browsers will collect and initialize all the variables in a scope on a pre-execution pas...
Is recursion a feature in and of itself?
...ed you marks for using a "feature" he hadn't taught yet, that was wrong.
Reading between the lines, one possibility is that by using recursion, you avoided ever using a feature that was supposed to be a learning outcome for his course. For example, maybe you didn't use iteration at all, or maybe y...
How can I find the last element in a List?
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IMHO this doesn't deserve to be the top answer, it reads terribly and leaves the chance for an error if count is zero. The CleanCode™ approach would be to use Last/LastOrDefault as mentioned below.
– chillitom
Dec 4 '13 at 18:04
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Get img thumbnails from Vimeo?
... url works well. also, the API above doesnt work so go to vimeo.com/api to read about it.
– fedmich
Jun 28 '11 at 0:52
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Android - drawable with rounded corners at the top only
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@hmac it is necessary. Read the documentation, it makes it clear.
– Aleks G
Aug 13 '19 at 14:36
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How to get POSTed JSON in Flask?
I'm trying to build a simple API using Flask, in which I now want to read some POSTed JSON. I do the POST with the Postman Chrome extension, and the JSON I POST is simply {"text":"lalala"} . I try to read the JSON using the following method:
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How to increase font size in a plot in R?
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Did you read help(par) about ps? Does not seem text-related as far as I can tell.
– Dirk Eddelbuettel
Nov 22 '10 at 2:51
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Is there a way to run Python on Android?
...odules? What about access to Android-specific features, such as ability to read messages, add notification, work in the background, make a photo, read contacts list, determine GPS location etc.?
– Tadeck
Mar 24 '12 at 4:20
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Find and Replace Inside a Text File from a Bash Command
...u really really want to use just bash, then the following can work:
while read a; do
echo ${a//abc/XYZ}
done < /tmp/file.txt > /tmp/file.txt.t
mv /tmp/file.txt{.t,}
This loops over each line, doing a substitution, and writing to a temporary file (don't want to clobber the input). The m...