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This article mainly introduces "JavaScript how to realize the capitalization of the last letter". In daily operation, I believe many people have doubts about how JavaScript realizes the capitalization of the last letter. Xiaobian consulted all kinds of materials and sorted out simple and easy operation methods. I hope to help you answer the question of "JavaScript how to realize the capitalization of the last letter"! Next, please follow the small series to learn together!

Methods: 1. Use slice() method to divide the string into two parts: "tail letter" and "other subcharacters";2. Use toUpperCase() to convert the tail letter to upper case, toLowerCase() to convert other subcharacters to lower case;3. Use "+" operator to splice the two parts together again to form a new string.

Operating environment of this tutorial: Windows 7 system, Javascript version 1.8.5, Dell G3 computer.

In JavaScript, initial capitalization can be set using slice(), toUpperCase(), toLowerCase() functions, and the string concatenation character "+."

Realization of ideas:

Use the slice() method to divide a string into two parts: the last letter character part, and the other subcharacter part.

Use toUpperCase() to convert last letters to upper case; use toLowerCase() to convert other subcharacters to lower case.

Use the "+" operator to rejoin the two parts

Implementation code:

function f(str) {newStr = str.slice(0,-1).toLowerCase()+str.slice(-1).toUpperCase(); console.log(newStr);}f("hello World");f("abcd");

Description:

The slice(start, end) method extracts a portion of a string and returns the extracted portion as a new string.

Use the start (inclusive) and end (exclusive) parameters to specify the portion of the string extracted.

Grammar:

string.slice(start,end)

At this point, the study of "how to capitalize the last letter in JavaScript" is over, hoping to solve everyone's doubts. Theory and practice can better match to help everyone learn, go and try it! If you want to continue learning more relevant knowledge, please continue to pay attention to the website, Xiaobian will continue to strive to bring more practical articles for everyone!

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