In javascript, how do you search an array for a substring match -

i need search array in javascript. search part of string match string have addtional numbers assigned it. need return matched array element full string.

i.e.

var windowarray = new array ("item","thing","id-3-text","class"); 

i need search array element "id-" in , need pull rest of text in element (ie. "id-3-text").

thanks

in specific case, can boring old counter:

var index, value, result; (index = 0; index < windowarray.length; ++index) {     value = windowarray[index];     if (value.substring(0, 3) === "id-") {         // you've found it, full text in `value`.         // might grab , break loop, although         // having found depends on         // need.         result = value;         break;     } }  // use `result` here, `undefined` if not found 

but if array sparse, can more efficiently properly-designed for..in loop:

var key, value, result; (key in windowarray) {     if (windowarray.hasownproperty(key) && !isnan(parseint(key, 10))) {         value = windowarray[key];         if (value.substring(0, 3) === "id-") {             // you've found it, full text in `value`.             // might grab , break loop, although             // having found depends on             // need.             result = value;             break;         }     } }  // use `result` here, `undefined` if not found 

beware naive for..in loops don't have hasownproperty , !isnan(parseint(key, 10)) checks; here's why.

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off-topic:

another way write

var windowarray = new array ("item","thing","id-3-text","class"); 

is

var windowarray = ["item","thing","id-3-text","class"]; 

...which less typing you, , perhaps (this bit subjective) bit more read. 2 statements have same result: new array contents.