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Adding two numbers concatenates them instead of calculating the sum
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They are actually strings, not numbers. The easiest way to produce a number from a string is to prepend it with +:
var x = +y + +z;
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Setting multiple attributes for an element at once with JavaScript
...new $$.init(elem));
}
$$.init = function(elem) {
if (typeof elem === "string") {
elem = document.getElementById(elem);
}
this.elem = elem;
}
$$.init.prototype = {
set: function(prop, value) {
this.elem[prop] = value;
return(this);
}
};
$$(elem).set("src...
What does the PHP error message “Notice: Use of undefined constant” mean?
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You should quote your array keys:
$department = mysql_real_escape_string($_POST['department']);
$name = mysql_real_escape_string($_POST['name']);
$email = mysql_real_escape_string($_POST['email']);
$message = mysql_real_escape_string($_POST['message']);
As is, it was looking for constants...
Format file size as MB, GB, etc [duplicate]
I need to display a file size as a string using sensible units.
3 Answers
3
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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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Convert String to System.IO.Stream [duplicate]
I need to convert a String to System.IO.Stream type to pass to another method.
5 Answers
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jQuery - replace all instances of a character in a string [duplicate]
...on, so that you can specify the global (g) flag:
var s = 'some+multi+word+string'.replace(/\+/g, ' ');
(I removed the $() around the string, as replace is not a jQuery method, so that won't work at all.)
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What does -z mean in Bash? [duplicate]
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-z string True if the string is null (an empty string)
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Creating NSData from NSString in Swift
... NSMutableURLRequest with a valid HTTPBody , but I can't seem to get my string data (coming from a UITextField ) into a usable NSData object.
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PHP去除字符串中的最后一个字符 - 更多技术 - 清泛网 - 专注C/C++及内核技术
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rtrim — 删除字符串末端的空白字符（或者其他字符）
string rtrim ( string $str [, string $charlist ] )
该函数删除 str 末端的空白字符并返回。
string rtrim ( string $str [, string $charlist ] )
通过指定 charlist，可以指定想要删除的字符列表。...