When we enter text in the text box and press enter, we hope that after the submission, the web page will also display a line break effect. In this case, we need to process the submitted content to achieve the effect. 1. Define the native replacement function of js. Js does not have the replaceAll function. We need to customize [javascript... syntaxHighlighter. all (); when we enter text in the text box and press enter, we hope that after the submission, the web page will also display a line break effect, at this time, we need to process the submitted content to achieve the effect. 1. Define the native replacement function of js. Js does not have the replaceAll function. We need to customize [javascript] String. prototype. replaceAll = function (s1, s2) {return this. replace (new RegExp (s1, "gm"), s2);} 2. use javascript replace to process [javascript] str = str. replaceAll ("\ n ","
") In this way, we can achieve the effect of js carriage return and line feed!
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