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This article introduces the relevant knowledge of "whether there is a trim method in javascript". In the operation of actual cases, many people will encounter such a dilemma. Next, 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!

There is a trim method in javascript. Trim () is a string processing method built into javascript that removes the beginning and end of a string with the syntax "string.trim ()"; the spaces that can be deleted by the trim method include space characters, tabs, line feeds, carriage returns, and so on.

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

There is a trim method in javascript.

The trim () method is used to remove the leading and trailing white space character of a string. The syntax is as follows:

String.trim ()

The trim () method removes the following white space characters:

"": normal space character

"\ t": tabs

"\ n": newline character

"\ r": carriage return

"\ 0": empty byte character

"\ x0B": vertical tab.

The trim () method does not change the original string.

The trim () method does not apply to null, undefined, Number types.

JavaScript version: ECMAScript 5

Return value: returns a string that removes leading and trailing spaces

Example:

Function f () {var str1 = `123`; console.log (str1); console.log (str1.trim ()); var str2 = `\ n23\ n4`; console.log (str2); console.log (str2.trim ());} f ()

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