Managing numerous subscriptions simultaneously

I am working with an array of strings and trying to call an async function on each string. However, when using a for loop, the subscribe function does not execute. Is there a more appropriate method for achieving this task? Below is my current implementation:

for (let i = 0; i < this.selectedNodes.length; i++) {
    this.fileSelectorService.fixPath(this.selectedNodes[i])
        .subscribe(res => {
            // The code inside this block doesn't run when using a for loop (works fine without it)
            var fixedPath = res;
        })
    }
} 

Answer №1

One method to consider is using the forkJoin() function after transforming the strings into an array of observables in the following manner:

const arrayOfObservables = this.selectedNodes.map(node => this.fileSelectorService.normalizePath(node));

forkJoin(arrayOfObservables)
      .subscribe(response => {
                // The response will contain an array of results from invoking this.fileSelectorService.normalizePath(node)
                console.log(response);
                // Handle the response accordingly
            });

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