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Best ways to teach a beginner to program? [closed]
...mers, and more logic)
Depending on their age some really like an app which calls the users a random insult at some interval. (Loops, arrays, timers, and random if you make the interval random)
2) Simple Project Once they have a good grasp of language features, you can start a project(simple, fun g...
Why does CSS not support negative padding?
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Eh, it's a reason, but I wouldn't call it a satisfactory one. This is a case where the spec goes beyond telling me how to define my page and starts telling me how I should define my page. If I want my content to overlap my background edges, borders and/or m...
Cast int to varchar
I have below query and need to cast id to varchar
8 Answers
8
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Spring 3 RequestMapping: Get path value
... HandlerMapping.PATH_WITHIN_HANDLER_MAPPING_ATTRIBUTE:
@RequestMapping("/{id}/**")
public void foo(@PathVariable("id") int id, HttpServletRequest request) {
String restOfTheUrl = (String) request.getAttribute(
HandlerMapping.PATH_WITHIN_HANDLER_MAPPING_ATTRIBUTE);
...
}
...
SQLite add Primary Key
...ered Jun 3 '09 at 17:42
Nathan RidleyNathan Ridley
31.2k2828 gold badges113113 silver badges186186 bronze badges
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Are class names in CSS selectors case sensitive?
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CSS selectors are generally case-insensitive; this includes class and ID selectors.
But HTML class names are case-sensitive (see the attribute definition), and that's causing a mismatch in your second example. This has not changed in HTML5.1
This is because the case-sensitivity of selectors i...
Mongoose, Select a specific field with find
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The _id field is always present unless you explicitly exclude it. Do so using the - syntax:
exports.someValue = function(req, res, next) {
//query with mongoose
var query = dbSchemas.SomeValue.find({}).select('name -_id')...
ViewParam vs @ManagedProperty(value = “#{param.id}”)
...ditional <f:event type="preRenderView" listener="#{bean.init}" /> inside the <f:metadata> to do initialization/preloading based on the set values. Since JSF 2.2 you could use <f:viewAction> for that instead.
Allows for nested <f:converter> and <f:validator> for more fi...
ssh “permissions are too open” error
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Keys need to be only readable by you:
chmod 400 ~/.ssh/id_rsa
If Keys need to be read-writable by you:
chmod 600 ~/.ssh/id_rsa
600 appears to be fine as well (in fact better in most cases, because you don't need to change file permissions later to edit it).
The relevant por...
How do you use Mongoose without defining a schema?
... is true to an extent, however there is a workaround that I found. You can call the toJSON() method on the document that you retrieved which will then allow you to use your regular dot notation like doc.someProp. Sorry to reply on such an old answer. Just wanted to add this in case someone comes acr...