Text boxes that can only enter numbers and decimal placesHTML code
>
and -->
You can only enter a text box for numbers and decimals: onkeyup= "Value=value.replace (/[^d.] /g, ') '>
and --> text boxes that
JavaScript judgment navigator.userAgent.indexOf ("IPhone") HTML to determine IE type 1. can recognize 2. all IE identifiable 3. only IE5.0 can recognize 4. only IE5.0 and IE5.5 can be identified 5 IE5.0 and
The example in this article describes how JavaScript gets the intersection of two arrays. Share to everyone for your reference. Specifically as follows:
The array passed in here must be already sorted.
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This article mainly introduces the use of the Blink () method in JavaScript, is the basic knowledge of JS learning, need friends can refer to the
This method causes a string to blink as if it were a blink tag.
Grammar
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1
This article mainly introduces the JavaScript in the italics () method used, is the basic knowledge of JS learning, need friends can refer to the
This method will cause a string to be italic, as if it were in the label
Grammar
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1
The JavaScript date.settime () method sets the time for the date object to be represented by the number of milliseconds from January 1, 1970 00:00:00 UTC.
Grammar ?
1
Date.settime (TimeValue)
Note: The data inside and
The JavaScript date.getutchours () method returns the time at the specified date according to the Universal Time. The value returned by getUTCHours is an integer between 0 and 23.
Grammar
1
Date.getutchours ()
The
This article introduces the number of occurrences of each character in a string in JS, and a friend in Need can refer to
The code is as follows:
Copy Code code as follows:
Function numinstring (str) { str=str.replace (//ig, ""); var
This article mainly introduces the JavaScript used to generate random number of math.random () method, is the basic knowledge of JS learning, need friends can refer to the
This method returns a random number between 0 (including) and 1 (excluding)
This method returns the tangent of radians. The Atan method returns a numeric value between-PI/2 and Π/2 radians.
Grammar
1
Math.atan (x);
The following are the details of the parameters:
X: A number
return
This example describes the use of push functions in JavaScript. Share to everyone for your reference. The specific analysis is as follows:
The push method in JavaScript, adds a new element to an array, and returns the new length value of the array.
This example describes the use of slice functions in JavaScript. Share to everyone for your reference. The specific analysis is as follows:
The slice function in JavaScript, which returns a section of an array for the slice function of the array
This article mainly introduces the use of JavaScript string.match () method, is the basic knowledge of JS learning, need friends can refer to the
This method is used when matching a string that matches a regular expression to retrieve a match.
This article mainly introduces the use of the JavaScript search () method, is the basic knowledge of JS learning, need friends can refer to the
This method performs a search for a regular expression and a match between string objects.
Grammar
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The position of the element is measured in pixels, to the right represents an increase in the x-coordinate of the Y coordinate, but there are two different points as the origin of the coordinate system: the x and y coordinates of the elements can be
The example in this article describes how JavaScript highlights table rows through the event agent. Share to everyone for your reference. The implementation methods are as follows:
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The following is an analysis of the use of confirm, the need for friends can refer to the
jQuery.ligerDialog.confirm (' OK delete? ') function (confirm) { if (confirm) F_delete (); }); =======================
Let me guess your heart card, first randomly generated 27 cards, can not repeat the list of three cards, and then remember one of them, and then click on the list of cards, many times you can guess the cards you want, the specific implementation of
This article demonstrates the difference between parseint and parsefloat with a simple example, and a friend who is in need can refer to
First look at the code:
Copy Code code as follows:
Run Result:
parseint () and parsefloat () Two methods are
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