Replace characters in string array Javascript

Strings are immutable, so you just have to re-assign their value:

vertices[x] = vertices[x].replace('v ', '');

javascript arrays string replace

Should be

vertices[x]=vertices[x].replace('v ', '');

Because replace returns value, and doesn't change initial string.

javascript arrays string replace

vertices[x] = vertices[x].replace('v ', '');

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