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How to use git bisect?
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git bisect run automatic bisect
If you have an automated ./test script that has exit status 0 iff the test is OK, you can automatically find the bug with bisect run:
git checkout KNOWN_BAD_COMMIT
git bisect start
# Confirm that our test script is correct, and fails on the bad commit.
./...
Test for non-zero length string in Bash: [ -n “$var” ] or [ “$var” ]
I've seen Bash scripts test for a non-zero length string in two different ways. Most scripts use the -n option:
6 Answers...
How do I turn a C# object into a JSON string in .NET?
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You could use the JavaScriptSerializer class (add reference to System.Web.Extensions):
using System.Web.Script.Serialization;
var json = new JavaScriptSerializer().Serialize(obj);
A full example:
using System;
using System.Web.Script.Seria...
What's the difference between using “let” and “var”?
...function scope is confusing and was one of the main sources of bugs in JavaScript.
Take a look at this example from another stackoverflow question:
var funcs = [];
// let's create 3 functions
for (var i = 0; i < 3; i++) {
// and store them in funcs
funcs[i] = function() {
// each should...
Tomcat: How to find out running tomcat version
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Try parsing or executing the Tomcat_home/bin directory and look for
a script named version.sh or version.bat depending on your
operating system.
Execute the script ./version.sh or version.bat
If there are no version.bat or version.sh then
use a tool to unzipping JAR files (\tomcat\server\lib\...
Limit number of characters allowed in form input text field
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Add the following to the header:
<script language="javascript" type="text/javascript">
function limitText(limitField, limitNum) {
if (limitField.value.length > limitNum) {
limitField.value = limitField.value.substring(0, limitNum);
}
}
&...
pyplot scatter plot marker size
...,100,144]:
fig,ax = plt.subplots(figsize=(1.5,2), dpi=dpi)
ax.set_title("fig.dpi={}".format(dpi))
ax.set_ylim(-3,3)
ax.set_xlim(-2,2)
ax.scatter([0],[1], s=10**2,
marker="s", linewidth=0, label="100 points^2")
ax.scatter([1],[1], s=(10*72./fig.dpi)**2,
...
Share cookie between subdomain and domain
....com to share cookies.
See also:
www vs no-www and cookies
cookies test script to try it out
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How do I update a Python package?
...de all the outdated packages (that were installed using pip), just run the script bellow,
pip install $(pip list --outdated | awk '{ print $1 }') --upgrade
Here, pip list --outdated will list all the out dated packages and then we pipe it to awk, so it will print only the names.
Then, the $(...) ...
Git 工具 - 子模块(submodule)：一个仓库包含另一个仓库 - 开源 & Github -...
...102 Sep 17 15:21 includes
drwxr-xr-x 4 schacon staff 136 Sep 17 15:21 scripts
drwxr-xr-x 4 schacon staff 136 Sep 17 15:21 src
$ cd DbConnector/
$ ls
$
其中有 DbConnector 目录，不过是空的。 你必须运行两个命令：git submodule init 用来初始化本地配置文...