I am currently working on a JavaScript project where I need to detect if a string starts with specific letters using regex. If the condition is met, I want to perform certain actions. Specifically, I am searching for the value "window_" at the beginning of a string.
Here is an excerpt of my code:
if (div_type.match(/^\window_/)){
}
Despite this implementation, it appears that the result is true even when the specified value is not present in the string.
Using regular expressions is unnecessary for this specific type of string comparison:
if (div_type.indexOf("window_") === 0) {
// Perform a specific action
}
If you are considering using regular expressions, you can opt for test() instead of match(). This will look like /regex_pattern/.test(string)
For instance:
function check(p){
return /^window_/.test(p);
}
console.log(check("window_boo"), // true
check("findow_bar")); // false
In your case:
if ( /^window_/.test(div_type) ) {
...
}
There is no necessity for a regex in this case.
if( div_type.substr(0,"window_".length) == "window_")
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