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Test if something is not undefined in JavaScript
I'm checking if(response[0].title !== undefined) , but I get the error:
11 Answers
11...
How to sort an array in Bash
...ed and see!
– antak
Oct 19 '15 at 9:04
3
Very nice. Could you explain for the average bash user h...
How do I add an icon to a mingw-gcc compiled executable?
...ile and follow the above mentioned steps.
1 VERSIONINFO
FILEVERSION 1,0,0,0
PRODUCTVERSION 1,0,0,0
BEGIN
BLOCK "StringFileInfo"
BEGIN
BLOCK "080904E4"
BEGIN
VALUE "CompanyName", "My Company Name"
VALUE "FileDescription", "My excellent application"
VALUE "FileVersi...
How to pass an array into jQuery .data() attribute
...
|
edited Dec 20 '13 at 18:08
answered May 20 '11 at 12:07
...
Create Pandas DataFrame from a string
...that to the pandas.read_csv function. E.g:
import sys
if sys.version_info[0] < 3:
from StringIO import StringIO
else:
from io import StringIO
import pandas as pd
TESTDATA = StringIO("""col1;col2;col3
1;4.4;99
2;4.5;200
3;4.7;65
4;3.2;140
""")
df = pd.read_csv(TEST...
How can I convert the “arguments” object to an array in JavaScript?
...
730
+100
ES6 usin...
Which version of MVC am I using?
...ome reason, feeling a little dumb. How do I know? I'm using .net 4 with VS2010.
9 Answers
...
jQuery select all except first
...
$("div.test:not(:first)").hide();
or:
$("div.test:not(:eq(0))").hide();
or:
$("div.test").not(":eq(0)").hide();
or:
$("div.test:gt(0)").hide();
or: (as per @Jordan Lev's comment):
$("div.test").slice(1).hide();
and so on.
See:
http://api.jquery.com/first-selector/
http...
MongoDB副本集详解 优于以往的主从模式 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...g/downloads
实验环境使用的Mongodb版本为mongodb-linux-x86_64-2.6.0
由三台虚拟机搭建，配置为单核,1G内存。实验环境如下:
MongoDB的副本集不同于以往的主从模式。
在集群Master故障的时候，副本集可以自动投票，选举出新的Master，并...