How to delete non-numeric characters by javascript

This article introduces the knowledge of "how to delete non-numeric characters in javascript". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

In js, the replace () function can be used with the regular expression "/ [^ 0-9] / g" or "/ [^\ d] / g" to delete non-numeric characters, and the syntax "str.replace (/ [^ 0-9] / gjingjue')" or "str.replace (/ [^\ d] / gjingjue')".

The operating environment of this tutorial: windows7 system, javascript1.8.5 version, Dell G3 computer.

In javascript, you can use the replace () function with regular expressions to delete non-numeric characters.

The replace () method is used to replace some characters in a string with other characters, or to replace a substring that matches a regular expression.

Example:

Var str= "0123kj45j67u89"; var nstr = str.replace (/ [^ 0-9] / GMagneur'); / / var nstr = str.replace (/ [^\ d] / GMAE'); console.log (nstr)

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