JavaScript’sString.prototype.matchAllwas added in ES2020 and makes it easier to operate on regex matches in a loop when you need extended match details. Although other solutions were possible before,matchAllis
The search functionThe search function returns the index of the first match between the regular expression and the given string. It returns -1 if the match is not found. search_fun.js let text = 'I saw a fox in the wood. The fox had red fur.'; let pattern = /fox/; let idx = ...
JavaScript, JScript Python VBScript DelphiScript C++Script, C#Script Copy Code functionInsertComments(ProgramText) { varNewProgramText, ReplacementLines; varregEx; // Set regular expression pattern that corresponds to Pascal function declaration
In JavaScript 1.5 (but not JavaScript 1.2), you can also use arbitrary regular expressions as anchor conditions. If you include an expression within(?=and)characters, it is a lookahead assertion, and it specifies that the enclosed characters must match, without actually matching them. For example...
Note that when using $1 and $2 in the replace function these match with the first and second regular expression capture group. $1 references the 🍕, and $2 references the 🌯. Wild stuff! But as sequences such as $1 and $2 reference capture groups you might wonder how you replace ...
The example uses thereplace Method (JavaScript). jscript複製 function ReplaceGlobal() { var src = "The batter hit the ball with the bat "; src += "and the fielder caught the ball with the glove."; // Replace "the" with "a". var re = /the/g; var result = src.replace(re, "...
RegExp | function - A regular expression or functionconst unformattedName = 'aaron.arney:alligator.io'; // The "long" way const exp = new RegExp(/([a-z]{1,15})\.([a-z]{1,15}):([a-z]{3,25}\.[a-z]{2,10})/, 'i'); unformattedName.replace(exp, '$1 $2 [$3]');...
Using the constructor function, as follows : re = new RegExp("Green") JavaScript: Regular Expressions patterns Sometimes various pattern matching is required instead of direct matching. For example, the pattern /xy*z/ matches any character. ...
Kotlin split function Thesplitmethod splits the input string around matches of the regular expression. regex_split.js package com.zetcode fun main() { val text = "I saw a fox in the wood. The fox had red fur." val pattern = "\\W+".toRegex() ...
代码语言:javascript 复制 function camelCaseToRegular(camelCase) { let regular = ''; for (let i = 0; i < camelCase.length; i++) { if (i > 0 && camelCase[i] === camelCase[i].toUpperCase()) { regular += ' '; } regular += camelCase[i]; } return regular; } console.log(...