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This article mainly introduces "how to convert jquery strings to numbers". In daily operation, I believe many people have doubts about how to convert jquery strings to numbers. The editor consulted all kinds of materials and sorted out simple and easy-to-use methods of operation. I hope it will be helpful to answer the doubts about "how to convert jquery strings to numbers". Next, please follow the editor to study!

Jquery string to digital method: 1, use the parseInt () function to parse the string to return an integer, the syntax is "parseInt (string)"; 2, use the parseFloat () function to parse the string and return a floating-point number, the syntax is "parseFloat (string)".

The operating environment of this tutorial: windows7 system, jquery1.10.0 version, Dell G3 computer.

The method of converting jquery string to number

1. Create a new html file, named test.html, to explain how jquery converts strings into numbers. Use the script tag to introduce the jquery.min.js file into the current page and load the file successfully before you can use the jquery method.

In the test.html file, use the input tag to create a text box for entering a string and set the id of the input tag to num, mainly used to get the input object through this id below. Create a button using the button tag and set its id to mybutton.

In the test.html file, use $to get the button object through id, bind it to the click click event, and execute the function method when the button is clicked.

2. In the function method, get the input object through input's id (num), use the val () method to get the input string, and use the parseInt () method or parseFloat () method to convert the string to a number. Finally, the result is output using the alert () method. Note: the parseInt () method returns an integer, while the parseFloat () method returns a floating point number.

Open the test.html file in the browser, enter characters, and click the button to view the results.

The result returned by the parseInt method is

The result returned by the parseFloat method is

Summary:

1. Create a test.html file.

2. In the file, create a character input box using the input tag and a button using the button tag.

3. Use the bind () method of jquery to bind the click click event to the button. When the button is clicked, get the string of the input input box, and use the parseInt () method and parseFloat () method to convert the string into a number.

Matters needing attention

In addition to the above two methods, you can also use the Number () method to determine that this method converts the whole value, not part of the value.

At this point, the study of "how to convert jquery strings to numbers" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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