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Get current date/time in seconds
... looking for something like this:
var timeout = new Date().getTime() + 15*60*1000; //add 15 minutes;
Then in your check, you're checking:
if(new Date().getTime() > timeout) {
alert("Session has expired");
}
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...
Objective-C and Swift URL encoding
...!@#$%^&*()_+-={}[]|\\:;\"'<,>.?/AZaz"
encodedString:
"%20%60~!@%23$%25%5E&*()_+-=%7B%7D%5B%5D%7C%5C:;%22'%3C,%3E.?/AZaz"
Note: consider if this set of characters meet your needs, if not change them as needed.
RFC 3986 characters requiring encoding (% added since it is the e...
How to round up a number in Javascript?
...1011,2)); // returns 679.00
alert(roundPrice(876.54321,2)); // returns 876.60
Important note: this solution produces a very different result with negative and exponential numbers.
For the sake of comparison between this answer and two that are very similar, see the following 2 approaches. The fir...
Which browsers support ?
...
60
There's two parts to this question, really.
Q: Which browsers support the "async" attribute o...
Best lightweight web server (only static content) for Windows [closed]
...t's a pretty neat, open source (GPL) Java application and weighs less than 60KB. Give it a try!
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Perform an action in every sub-directory using Bash
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kanakakanaka
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Print all properties of a Python Class [duplicate]
...
John R Perry
2,96011 gold badge2626 silver badges4444 bronze badges
answered May 11 '11 at 20:01
Jochen RitzelJochen ...
Read environment variables in Node.js
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60
If you want to use a string key generated in your Node.js program, say, var v = 'HOME', you can...
数据结构与本地数据库 05：搜索、倒序与重复导入 · App Inventor 2 中文网
...与独立改造
完成与下一步
本系列第 5/8 课，建议 45–60 分钟（估算）。先完成上一课。
下载本课完成工程 .aia
这课解决什么
显示集合与原始集合分开。搜索按题目或分类找记录，倒序改变显示顺序；选中...
Histogram Matplotlib
...mu, sigma = 100, 15
x = mu + sigma * np.random.randn(10000)
bins = [0, 40, 60, 75, 90, 110, 125, 140, 160, 200]
hist, bins = np.histogram(x, bins=bins)
width = np.diff(bins)
center = (bins[:-1] + bins[1:]) / 2
fig, ax = plt.subplots(figsize=(8,3))
ax.bar(center, hist, align='center', width=width)
a...