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How do I get jQuery to select elements with a . (period) in their ID?
... The solution as per the jQuery docs is adding only one "\" (slash). alert(escapeSelector("some.id")); will output as some\.id. So I guess the replace regex should have been s.replace( /(:|\.|[|])/g, "\\\\$1" );
– Arun
Apr 30 '15 at 10:35
...
PHP - how to best determine if the current invocation is from CLI or web server?
...
I did a research: if you invoke the script with php-cgi this won't work. In turn, it will return cgi-fcgi String. If you load the script as a web page from a browser, you'll get apache2handler. Hope this helps. I needed to use php-cgi in order to introduce $_GE...
How to save an HTML5 Canvas as an image on a server?
...
<canvas id="myCanvas" width="578" height="200"></canvas>
<script>
var canvas = document.getElementById('myCanvas');
var context = canvas.getContext('2d');
// begin custom shape
context.beginPath();
context.moveTo(170, 80);
context.bezierCurveTo(130, 100, 130, 150, 23...
How can I change Mac OS's default Java VM returned from /usr/libexec/java_home
...p is not an AppBundler application, instead its main executable is a shell script that calls a number of other shell scripts and reads various configuration files. It defaults to picking the newest JDK from /Library/Java as long as that is 7u10 or later, or uses Java 6 if your Java 7 installation i...
What are the special dollar sign shell variables?
...f the most recent background command.
$0 is the name of the shell or shell script.
Most of the above can be found under Special Parameters in the Bash Reference Manual. There are all the environment variables set by the shell.
For a comprehensive index, please see the Reference Manual Variable In...
How do I clear only a few specific objects from the workspace?
...n can be used to remove all the variables apart from "data". Here is the script:
0->data
1->data_1
2->data_2
3->data_3
#check variables in workspace
ls()
rm(list=setdiff(ls(), "data"))
#check remaining variables in workspace after deletion
ls()
#note: if you just use rm(list) then R ...
关于jQuery的AJAX不兼容IE的解决办法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...eStamp':new Date().getTime()},
dataType: 'json',
error: function (err) { alert('网络故障,请与管理员联系！') },
success: function (message) {
if(message!=false){
//ture的代码
}else{
//false的代码
}
});
参考链接：
jQuery 的 .get和.post和.ajax方法IE的兼容...
this.setState isn't merging states as I would expect
...gt; _.merge({}, previousState, { selected: { name: "Barfood"} }), () => alert(this.state.selected));
I used merge because extend discards the other properties otherwise.
React Immutability example:
import update from "react-addons-update";
this.setState((previousState) => update(previousS...
WARNING: Can't verify CSRF token authenticity rails
...
error: function( xhr ){
alert("ERROR ON SUBMIT");
},
success: function( data ){
//data response can contain what we want here...
console.log("SUCCESS, data="+data);
}
});
...
How to enter a multi-line command
...l also work in some contexts:
1,
2
Keep in mind, though, similar to JavaScript's Automatic Semicolon Insertion, there are some things that are similarly broken because the line break occurs at a point where it is preceded by a valid statement:
return
5
will not work.
Finally, strings (in al...