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How to create a tag with Javascript?
...red; }',
head = document.head || document.getElementsByTagName('head')[0],
style = document.createElement('style');
head.appendChild(style);
style.type = 'text/css';
if (style.styleSheet){
// This is required for IE8 and below.
style.styleSheet.cssText = css;
} else {
style.appendChi...
How to change MenuItem icon in ActionBar programmatically
...enu()
this.menu = menu;
In your button's onClick() method
menu.getItem(0).setIcon(ContextCompat.getDrawable(this, R.drawable.ic_launcher));
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Why there can be only one TIMESTAMP column with CURRENT_TIMESTAMP in DEFAULT clause?
... has been lifted in recent versions of MySQL:
Changes in MySQL 5.6.5 (2012-04-10, Milestone 8)
Previously, at most one TIMESTAMP column per table could be
automatically initialized or updated to the current date and time.
This restriction has been lifted. Any TIMESTAMP column definitio...
整合phpcms v9和discuz X3.2实现同步登陆、退出免激活 - 更多技术 - 清泛网...
...配置基本步骤：
第一步：安装 phpcms V9 。安装 Discuz! X3.0 （同时安装 UCenter）。
第二步：在 UCenter 中添加“phpsso 应用”。
1、管理员登录 Discuz! X3.0 管理中心，进入“UCenter”，点击“应用管理”。
2、点击“添加新应用”按钮...
Releasing memory in Python
...mport gc
import psutil
proc = psutil.Process(os.getpid())
gc.collect()
mem0 = proc.get_memory_info().rss
# create approx. 10**7 int objects and pointers
foo = ['abc' for x in range(10**7)]
mem1 = proc.get_memory_info().rss
# unreference, including x == 9999999
del foo, x
mem2 = proc.get_memory_in...
pretty-print JSON using JavaScript
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+100
Pretty-printing is implemented natively in JSON.stringify(). The third argument enables pretty printing and sets the spacing to use:
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git stash blunder: git stash pop and ended up with merge conflicts
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edited Jun 20 at 9:12
Community♦
111 silver badge
answered May 15 '10 at 16:56
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Canary release strategy vs. Blue/Green
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Dave SchweisguthDave Schweisguth
30.4k99 gold badges8484 silver badges106106 bronze badges
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Reading/parsing Excel (xls) files with Python
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answered May 31 '10 at 12:24
taleinattaleinat
7,3422626 silver badges3838 bronze badges
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Simple explanation of clojure protocols
...lojure itself.
Clojure has actually already had Protocols since version 1.0: Seq is a Protocol, for example. But until 1.2, you couldn't write Protocols in Clojure, you had to write them in the host language.
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