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Create, read, and erase cookies with jQuery [duplicate]
Somebody help me. How to create, read and erase some cookies with jQuery ?
4 Answers
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Counting null and non-null values in a single query
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This works for Oracle and SQL Server (you might be able to get it to work on another RDBMS):
select sum(case when a is null then 1 else 0 end) count_nulls
, count(a) count_not_nulls
from us;
Or:
select count(*) - count(a), count(a) from us;
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How to amend a commit without changing commit message (reusing the previous one)?
Is there a way to amend a commit without vi (or your $EDITOR ) popping up with the option to modify your commit message, but simply reusing the previous message?
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How do I create a slug in Django?
...e aware that the above will cause your URL to change when the q field is edited, which can cause broken links. It may be preferable to generate the slug only once when you create a new object:
class Test(models.Model):
q = models.CharField(max_length=30)
s = models.SlugField()
def s...
Saving enum from select in Rails 4.1
...n>
<option value="red">red</option>
<option value="white">white</option>
<option value="sparkling">sparkling</option>
</select>
Values went from "0" to "red" and now we're all set.
If you're using a regular ol' rails text_field it's:
f.select...
StringUtils.isBlank() vs String.isEmpty()
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StringUtils.isBlank() checks that each character of the string is a whitespace character (or that the string is empty or that it's null). This is totally different than just checking if the string is empty.
From the linked documentation:
Checks if a String is whitespace, empty ("") or null.
S...
MongoDB logging all queries
The question is as basic as it is simple... How do you log all queries in a "tail"able log file in mongodb?
15 Answers
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WPF Textblock, linebreak in Text attribute
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edited Dec 16 '15 at 14:38
croxy
3,57088 gold badges2323 silver badges4141 bronze badges
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Get form data in ReactJS
...the change events on the inputs to update the component's state and access it in handleLogin:
handleEmailChange: function(e) {
this.setState({email: e.target.value});
},
handlePasswordChange: function(e) {
this.setState({password: e.target.value});
},
render : function() {
return (
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heroku - how to see all the logs
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edited Jun 14 '17 at 17:27
reergymerej
1,95222 gold badges1919 silver badges2828 bronze badges
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