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wkhtmltopdf: cannot connect to X server
I have been using wkthmltopdf to convert html to pdf documents on-the-fly on my linux web server. The program originally needed X11 or similar X server to run correctly, but through many requests by developers to have this run on servers without GUI, I am pretty sure it runs a virtual X server in...
Is it alright to use target=“_blank” in HTML5?
...ave the current article or tab, but still interact with the heavy download PDF or video. Using _blank make shure that you let the user populate an empty tab - not override the current populating content, if you serve many links on the same session/ site. Unique names are just messy in an audio-list ...
Does JSON syntax allow duplicate keys in an object?
... value for each duplicate key will be taken into account.
For example, in Python, json.loads('{"a": 1, "a": 2}') returns {"a": 2}.
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Resource interpreted as Document but transferred with MIME type application/zip
... you'd like to interpret the response as HTML. Now if even server send you PDF files, your browser tries to understand it as HTML. That's the problem. I'm searching to see what the reason could be. :)
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Structs in Javascript
...ker: 'mary', country: 'us' } ]
1
john
au
You can make it look similar to Python's namedtuple:
const NamedStruct = (name, ...keys) => ((...v) => keys.reduce((o, k, i) => {o[k] = v[i]; return o} , {_name: name}))
const Item = NamedStruct('Item', 'id', 'speaker', 'country')
var myItems = [
...
CoInitialize浅析一 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...769AEFC2 test ch, 10h ;判断标识第4位（从第0位开始）是否置位
769AEFC5 jnz loc_769D9D20 ; 服务器出现意外情况。
769AEFCB mov edx, ebx
769AEFCD and edx, 2
769AEFD0 ...
Linux 堆内存快照可视化，快照比较，跟踪内存变化，定位内存泄漏等问题 - ...
...p; #29 2^29内存满了重新打一个.heap快照文件
jeprof xxx -pdf xxx.heap > 1.pdf #分析.heap文件，可视化生成pdf
jeprof xxx -pdf --base xx1.heap xx2.heap > 2.pdf # 比较2个.heap快照文件，分析差别
安装依赖库：
gperftools
...
Command-line Unix ASCII-based charting / plotting tool
...hich could be fit together to make
line, not bar, plots ?)
#!/usr/bin/env python
# -*- coding: utf-8 -*-
from __future__ import division
import numpy as np
__version__ = "2015-01-02 jan denis"
#...............................................................................
def onelineplot( x, ...
JavaScript/jQuery to download file via POST with JSON data
...y_file.php will include a value 'url', which is the URL that the generated PDF/XLS/etc file can be downloaded from. Adding an iframe to the page that references that URL will result in the browser promoting the user to download the file, assuming that the web server has the appropriate mime type con...
程序设计里代码块较多，有点卡，有没有办法解决？ - App Inventor 2 中文网...
...写一个过程了。
2. 善用字典、Any 代码块简化逻辑，具体实践请参考：《Any代码块，代码整洁之道》
3. 写拓展：如果你的代码逻辑很复杂，且独立，可以考虑自己写一个拓展，代码块中只需要调用拓展就行了，几乎零代码。
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