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Best way to check for “empty or null value”
What is best way to check if value is null or empty string in Postgres sql statements?
10 Answers
...
ASP.NET MVC Html.DropDownList SelectedValue
...ry this:
public class Person {
public int Id { get; set; }
public string Name { get; set; }
}
And then:
var list = new[] {
new Person { Id = 1, Name = "Name1" },
new Person { Id = 2, Name = "Name2" },
new Person { Id = 3, Name = "Name3" }
};
var selectList = new Select...
Javascript/jQuery: Set Values (Selection) in a multiple Select
...r values="Test,Prof,Off";
$.each(values.split(","), function(i,e){
$("#strings option[value='" + e + "']").prop("selected", true);
});
Working Example http://jsfiddle.net/McddQ/1/
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impr...
Selecting empty text input using jQuery
...= $('input:text').filter(function() { return this.value == ""; });
var string = "The blank textbox ids are - \n";
emptyTextBoxes.each(function() {
string += "\n" + this.id;
});
alert(string);
});
});
...
Display a float with two decimal places in Python
...decimals with one significant digit), and I need to output the values in a string with two decimal places (5 -> 5.00, 5.5 -> 5.50, etc). How can I do this in Python?
...
Convert hex to binary
...
Doesn't provide leading zeros if hex string starts with 00.
– Dragon
Dec 20 '17 at 22:19
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JQuery string contains check [duplicate]
I need to check whether a string contains another string or not?
5 Answers
5
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Why does [5,6,8,7][1,2] = 8 in JavaScript?
...e second [...] cannot be an array, so it’s an array subscript operation. And the contents of a subscript operation are not a delimited list of operands, but a single expression.
Read more about the comma operator here.
sh...
How do I convert a string to a number in PHP?
...
here the situation is bit different I want to convert any string(contains only numbers) to a general number. As U may know in javaScript we can use parseInt() to convert string=>int or parseFloat() to convert string=>float. but in general javaScript use Number() to convert st...
How do I create a dynamic key to be added to a JavaScript object variable [duplicate]
...names are not special as far as simple property access goes. They're just strings that happen to look like numbers, but JavaScript object property names can be any sort of string you like.
Thus, the way the [ ] operator works in a for loop iterating through an array:
for (var i = 0; i < myArray....