myString.replace( VARIABLE, “”) … but globally

Question

How can I use a variable to remove all instances of a substring from a string? (to remove, I\'m thinking the best way is to replace, with nothing, globally... right?)

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Answer 1

No need to use a regular expression here: split the string around matches of the substring you want to remove, then join the remaining parts together:

myString.split(oldWord).join('')

In the OP's example:

var myString = "This sentence is an example sentence.";
var oldWord = " sentence";
console.log(myString.split(oldWord).join(''));