let numbers = new Array('1','2','3');
let letters = new Array('a','b','c');
let length = numbers.length;
let str = 'abcdefgabcdefg';
for (let i=0; i<length; i++) {
let regex = new RegExp(numbers[i],'g');
str = str.replace(letters[i], regex);
}
alert(str);
The desired output is 123defg123defg. However, the actual output is /1/g/2/g/3/gdefgabcdefg.
Your approach needs adjustment because the goal is to globally replace instances of array y with instances of x. To achieve this, consider modifying your code as shown below:
for (let index=0;index<iLen;index++) {
let regex = new RegExp(y[index],'g'); //create a regular expression for global y[i]
s = s.replace(regex, x[index]); //replace all instances of y[i] with x[i] globally
}
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